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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-10 20:09:20 +0000
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Adding upstream version 2:9.1.0016.upstream/2%9.1.0016
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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+*quickfix.txt* For Vim version 9.1. Last change: 2023 Jan 18
+
+
+ VIM REFERENCE MANUAL by Bram Moolenaar
+
+
+This subject is introduced in section |30.1| of the user manual.
+
+1. Using QuickFix commands |quickfix|
+2. The error window |quickfix-window|
+3. Using more than one list of errors |quickfix-error-lists|
+4. Using :make |:make_makeprg|
+5. Using :grep |grep|
+6. Selecting a compiler |compiler-select|
+7. The error format |error-file-format|
+8. The directory stack |quickfix-directory-stack|
+9. Specific error file formats |errorformats|
+10. Customizing the quickfix window |quickfix-window-function|
+
+The quickfix commands are not available when the |+quickfix| feature was
+disabled at compile time.
+
+=============================================================================
+1. Using QuickFix commands *quickfix* *Quickfix* *E42*
+
+Vim has a special mode to speedup the edit-compile-edit cycle. This is
+inspired by the quickfix option of the Manx's Aztec C compiler on the Amiga.
+The idea is to save the error messages from the compiler in a file and use Vim
+to jump to the errors one by one. You can examine each problem and fix it,
+without having to remember all the error messages.
+
+In Vim the quickfix commands are used more generally to find a list of
+positions in files. For example, |:vimgrep| finds pattern matches. You can
+use the positions in a script with the |getqflist()| function. Thus you can
+do a lot more than the edit/compile/fix cycle!
+
+If you have the error messages in a file you can start Vim with: >
+ vim -q filename
+
+From inside Vim an easy way to run a command and handle the output is with the
+|:make| command (see below).
+
+The 'errorformat' option should be set to match the error messages from your
+compiler (see |errorformat| below).
+
+ *quickfix-ID*
+Each quickfix list has a unique identifier called the quickfix ID and this
+number will not change within a Vim session. The |getqflist()| function can be
+used to get the identifier assigned to a list. There is also a quickfix list
+number which may change whenever more than ten lists are added to a quickfix
+stack.
+
+ *location-list* *E776*
+A location list is a window-local quickfix list. You get one after commands
+like `:lvimgrep`, `:lgrep`, `:lhelpgrep`, `:lmake`, etc., which create a
+location list instead of a quickfix list as the corresponding `:vimgrep`,
+`:grep`, `:helpgrep`, `:make` do.
+ *location-list-file-window*
+A location list is associated with a window and each window can have a
+separate location list. A location list can be associated with only one
+window. The location list is independent of the quickfix list.
+
+When a window with a location list is split, the new window gets a copy of the
+location list. When there are no longer any references to a location list,
+the location list is destroyed.
+
+ *quickfix-changedtick*
+Every quickfix and location list has a read-only changedtick variable that
+tracks the total number of changes made to the list. Every time the quickfix
+list is modified, this count is incremented. This can be used to perform an
+action only when the list has changed. The |getqflist()| and |getloclist()|
+functions can be used to query the current value of changedtick. You cannot
+change the changedtick variable.
+
+The following quickfix commands can be used. The location list commands are
+similar to the quickfix commands, replacing the 'c' prefix in the quickfix
+command with 'l'.
+
+ *E924*
+If the current window was closed by an |autocommand| while processing a
+location list command, it will be aborted.
+
+ *E925* *E926*
+If the current quickfix or location list was changed by an |autocommand| while
+processing a quickfix or location list command, it will be aborted.
+
+ *:cc*
+:cc[!] [nr] Display error [nr]. If [nr] is omitted, the same
+:[nr]cc[!] error is displayed again. Without [!] this doesn't
+ work when jumping to another buffer, the current buffer
+ has been changed, there is the only window for the
+ buffer and both 'hidden' and 'autowrite' are off.
+ When jumping to another buffer with [!] any changes to
+ the current buffer are lost, unless 'hidden' is set or
+ there is another window for this buffer.
+ The 'switchbuf' settings are respected when jumping
+ to a buffer.
+ When used in the quickfix window the line number can
+ be used, including "." for the current line and "$"
+ for the last line.
+
+ *:ll*
+:ll[!] [nr] Same as ":cc", except the location list for the
+:[nr]ll[!] current window is used instead of the quickfix list.
+
+ *:cn* *:cne* *:cnext* *E553*
+:[count]cn[ext][!] Display the [count] next error in the list that
+ includes a file name. If there are no file names at
+ all, go to the [count] next error. See |:cc| for
+ [!] and 'switchbuf'.
+
+ *:lne* *:lnext*
+:[count]lne[xt][!] Same as ":cnext", except the location list for the
+ current window is used instead of the quickfix list.
+
+:[count]cN[ext][!] *:cp* *:cprevious* *:cprev* *:cN* *:cNext*
+:[count]cp[revious][!] Display the [count] previous error in the list that
+ includes a file name. If there are no file names at
+ all, go to the [count] previous error. See |:cc| for
+ [!] and 'switchbuf'.
+
+
+:[count]lN[ext][!] *:lp* *:lprevious* *:lprev* *:lN* *:lNext*
+:[count]lp[revious][!] Same as ":cNext" and ":cprevious", except the location
+ list for the current window is used instead of the
+ quickfix list.
+
+ *:cabo* *:cabove*
+:[count]cabo[ve] Go to the [count] error above the current line in the
+ current buffer. If [count] is omitted, then 1 is
+ used. If there are no errors, then an error message
+ is displayed. Assumes that the entries in a quickfix
+ list are sorted by their buffer number and line
+ number. If there are multiple errors on the same line,
+ then only the first entry is used. If [count] exceeds
+ the number of entries above the current line, then the
+ first error in the file is selected.
+
+ *:lab* *:labove*
+:[count]lab[ove] Same as ":cabove", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cbel* *:cbelow*
+:[count]cbel[ow] Go to the [count] error below the current line in the
+ current buffer. If [count] is omitted, then 1 is
+ used. If there are no errors, then an error message
+ is displayed. Assumes that the entries in a quickfix
+ list are sorted by their buffer number and line
+ number. If there are multiple errors on the same
+ line, then only the first entry is used. If [count]
+ exceeds the number of entries below the current line,
+ then the last error in the file is selected.
+
+ *:lbel* *:lbelow*
+:[count]lbel[ow] Same as ":cbelow", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cbe* *:cbefore*
+:[count]cbe[fore] Go to the [count] error before the current cursor
+ position in the current buffer. If [count] is
+ omitted, then 1 is used. If there are no errors, then
+ an error message is displayed. Assumes that the
+ entries in a quickfix list are sorted by their buffer,
+ line and column numbers. If [count] exceeds the
+ number of entries before the current position, then
+ the first error in the file is selected.
+
+ *:lbe* *:lbefore*
+:[count]lbe[fore] Same as ":cbefore", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:caf* *:cafter*
+:[count]caf[ter] Go to the [count] error after the current cursor
+ position in the current buffer. If [count] is
+ omitted, then 1 is used. If there are no errors, then
+ an error message is displayed. Assumes that the
+ entries in a quickfix list are sorted by their buffer,
+ line and column numbers. If [count] exceeds the
+ number of entries after the current position, then
+ the last error in the file is selected.
+
+ *:laf* *:lafter*
+:[count]laf[ter] Same as ":cafter", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cnf* *:cnfile*
+:[count]cnf[ile][!] Display the first error in the [count] next file in
+ the list that includes a file name. If there are no
+ file names at all or if there is no next file, go to
+ the [count] next error. See |:cc| for [!] and
+ 'switchbuf'.
+
+ *:lnf* *:lnfile*
+:[count]lnf[ile][!] Same as ":cnfile", except the location list for the
+ current window is used instead of the quickfix list.
+
+:[count]cNf[ile][!] *:cpf* *:cpfile* *:cNf* *:cNfile*
+:[count]cpf[ile][!] Display the last error in the [count] previous file in
+ the list that includes a file name. If there are no
+ file names at all or if there is no next file, go to
+ the [count] previous error. See |:cc| for [!] and
+ 'switchbuf'.
+
+
+:[count]lNf[ile][!] *:lpf* *:lpfile* *:lNf* *:lNfile*
+:[count]lpf[ile][!] Same as ":cNfile" and ":cpfile", except the location
+ list for the current window is used instead of the
+ quickfix list.
+
+ *:crewind* *:cr*
+:cr[ewind][!] [nr] Display error [nr]. If [nr] is omitted, the FIRST
+ error is displayed. See |:cc|.
+
+ *:lrewind* *:lr*
+:lr[ewind][!] [nr] Same as ":crewind", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cfirst* *:cfir*
+:cfir[st][!] [nr] Same as ":crewind".
+
+ *:lfirst* *:lfir*
+:lfir[st][!] [nr] Same as ":lrewind".
+
+ *:clast* *:cla*
+:cla[st][!] [nr] Display error [nr]. If [nr] is omitted, the LAST
+ error is displayed. See |:cc|.
+
+ *:llast* *:lla*
+:lla[st][!] [nr] Same as ":clast", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cq* *:cquit*
+:cq[uit][!]
+:{N}cq[uit][!]
+:cq[uit][!] {N} Quit Vim with error code {N}. {N} defaults to one.
+ Useful when Vim is called from another program:
+ e.g., a compiler will not compile the same file again,
+ `git commit` will abort the committing process, `fc`
+ (built-in for shells like bash and zsh) will not
+ execute the command, etc.
+ {N} can also be zero, in which case Vim exits
+ normally.
+ WARNING: All changes in files are lost! Also when the
+ [!] is not used. It works like ":qall!" |:qall|,
+ except that Vim returns a non-zero exit code.
+
+ *:cf* *:cfi* *:cfile*
+:cf[ile][!] [errorfile] Read the error file and jump to the first error.
+ This is done automatically when Vim is started with
+ the -q option. You can use this command when you
+ keep Vim running while compiling. If you give the
+ name of the errorfile, the 'errorfile' option will
+ be set to [errorfile]. See |:cc| for [!].
+ If the encoding of the error file differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+ *:lf* *:lfi* *:lfile*
+:lf[ile][!] [errorfile] Same as ":cfile", except the location list for the
+ current window is used instead of the quickfix list.
+ You can not use the -q command-line option to set
+ the location list.
+
+
+:cg[etfile] [errorfile] *:cg* *:cgetfile*
+ Read the error file. Just like ":cfile" but don't
+ jump to the first error.
+ If the encoding of the error file differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+
+:lg[etfile] [errorfile] *:lg* *:lge* *:lgetfile*
+ Same as ":cgetfile", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:caddf* *:caddfile*
+:caddf[ile] [errorfile] Read the error file and add the errors from the
+ errorfile to the current quickfix list. If a quickfix
+ list is not present, then a new list is created.
+ If the encoding of the error file differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+ *:laddf* *:laddfile*
+:laddf[ile] [errorfile] Same as ":caddfile", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cb* *:cbuffer* *E681*
+:cb[uffer][!] [bufnr] Read the error list from the current buffer.
+ When [bufnr] is given it must be the number of a
+ loaded buffer. That buffer will then be used instead
+ of the current buffer.
+ A range can be specified for the lines to be used.
+ Otherwise all lines in the buffer are used.
+ See |:cc| for [!].
+
+ *:lb* *:lbuffer*
+:lb[uffer][!] [bufnr] Same as ":cbuffer", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cgetb* *:cgetbuffer*
+:cgetb[uffer] [bufnr] Read the error list from the current buffer. Just
+ like ":cbuffer" but don't jump to the first error.
+
+ *:lgetb* *:lgetbuffer*
+:lgetb[uffer] [bufnr] Same as ":cgetbuffer", except the location list for
+ the current window is used instead of the quickfix
+ list.
+
+ *:cad* *:cadd* *:caddbuffer*
+:cad[dbuffer] [bufnr] Read the error list from the current buffer and add
+ the errors to the current quickfix list. If a
+ quickfix list is not present, then a new list is
+ created. Otherwise, same as ":cbuffer".
+
+ *:laddb* *:laddbuffer*
+:laddb[uffer] [bufnr] Same as ":caddbuffer", except the location list for
+ the current window is used instead of the quickfix
+ list.
+
+ *:cex* *:cexpr* *E777*
+:cex[pr][!] {expr} Create a quickfix list using the result of {expr} and
+ jump to the first error.
+ If {expr} is a String, then each newline terminated
+ line in the String is processed using the global value
+ of 'errorformat' and the result is added to the
+ quickfix list.
+ If {expr} is a List, then each String item in the list
+ is processed and added to the quickfix list. Non
+ String items in the List are ignored.
+ See |:cc| for [!].
+ Examples: >
+ :cexpr system('grep -n xyz *')
+ :cexpr getline(1, '$')
+<
+ *:lex* *:lexpr*
+:lex[pr][!] {expr} Same as |:cexpr|, except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cgete* *:cgetexpr*
+:cgete[xpr] {expr} Create a quickfix list using the result of {expr}.
+ Just like |:cexpr|, but don't jump to the first error.
+
+ *:lgete* *:lgetexpr*
+:lgete[xpr] {expr} Same as |:cgetexpr|, except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cadde* *:caddexpr*
+:cadde[xpr] {expr} Evaluate {expr} and add the resulting lines to the
+ current quickfix list. If a quickfix list is not
+ present, then a new list is created. The current
+ cursor position will not be changed. See |:cexpr| for
+ more information.
+ Example: >
+ :g/mypattern/caddexpr expand("%") .. ":" .. line(".") .. ":" .. getline(".")
+<
+ *:lad* *:addd* *:laddexpr*
+:lad[dexpr] {expr} Same as ":caddexpr", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:cl* *:clist*
+:cl[ist] [from] [, [to]]
+ List all errors that are valid |quickfix-valid|.
+ If numbers [from] and/or [to] are given, the respective
+ range of errors is listed. A negative number counts
+ from the last error backwards, -1 being the last error.
+ The |:filter| command can be used to display only the
+ quickfix entries matching a supplied pattern. The
+ pattern is matched against the filename, module name,
+ pattern and text of the entry.
+
+:cl[ist] +{count} List the current and next {count} valid errors. This
+ is similar to ":clist from from+count", where "from"
+ is the current error position.
+
+:cl[ist]! [from] [, [to]]
+ List all errors.
+
+:cl[ist]! +{count} List the current and next {count} error lines. This
+ is useful to see unrecognized lines after the current
+ one. For example, if ":clist" shows:
+ 8384 testje.java:252: error: cannot find symbol ~
+ Then using ":cl! +3" shows the reason:
+ 8384 testje.java:252: error: cannot find symbol ~
+ 8385: ZexitCode = Fmainx(); ~
+ 8386: ^ ~
+ 8387: symbol: method Fmainx() ~
+
+:lli[st] [from] [, [to]] *:lli* *:llist*
+ Same as ":clist", except the location list for the
+ current window is used instead of the quickfix list.
+
+:lli[st]! [from] [, [to]]
+ List all the entries in the location list for the
+ current window.
+
+If you insert or delete lines, mostly the correct error location is still
+found because hidden marks are used. Sometimes, when the mark has been
+deleted for some reason, the message "line changed" is shown to warn you that
+the error location may not be correct. If you quit Vim and start again the
+marks are lost and the error locations may not be correct anymore.
+
+Two autocommands are available for running commands before and after a
+quickfix command (':make', ':grep' and so on) is executed. See
+|QuickFixCmdPre| and |QuickFixCmdPost| for details.
+
+ *QuickFixCmdPost-example*
+When 'encoding' differs from the locale, the error messages may have a
+different encoding from what Vim is using. To convert the messages you can
+use this code: >
+ function QfMakeConv()
+ let qflist = getqflist()
+ for i in qflist
+ let i.text = iconv(i.text, "cp936", "utf-8")
+ endfor
+ call setqflist(qflist)
+ endfunction
+
+ au QuickfixCmdPost make call QfMakeConv()
+Another option is using 'makeencoding'.
+
+ *quickfix-title*
+Every quickfix and location list has a title. By default the title is set to
+the command that created the list. The |getqflist()| and |getloclist()|
+functions can be used to get the title of a quickfix and a location list
+respectively. The |setqflist()| and |setloclist()| functions can be used to
+modify the title of a quickfix and location list respectively. Examples: >
+ call setqflist([], 'a', {'title' : 'Cmd output'})
+ echo getqflist({'title' : 1})
+ call setloclist(3, [], 'a', {'title' : 'Cmd output'})
+ echo getloclist(3, {'title' : 1})
+<
+ *quickfix-index*
+When you jump to a quickfix/location list entry using any of the quickfix
+commands (e.g. |:cc|, |:cnext|, |:cprev|, etc.), that entry becomes the
+currently selected entry. The index of the currently selected entry in a
+quickfix/location list can be obtained using the getqflist()/getloclist()
+functions. Examples: >
+ echo getqflist({'idx' : 0}).idx
+ echo getqflist({'id' : qfid, 'idx' : 0}).idx
+ echo getloclist(2, {'idx' : 0}).idx
+<
+For a new quickfix list, the first entry is selected and the index is 1. Any
+entry in any quickfix/location list can be set as the currently selected entry
+using the setqflist() function. Examples: >
+ call setqflist([], 'a', {'idx' : 12})
+ call setqflist([], 'a', {'id' : qfid, 'idx' : 7})
+ call setloclist(1, [], 'a', {'idx' : 7})
+<
+ *quickfix-size*
+You can get the number of entries (size) in a quickfix and a location list
+using the |getqflist()| and |getloclist()| functions respectively. Examples: >
+ echo getqflist({'size' : 1})
+ echo getloclist(5, {'size' : 1})
+<
+ *quickfix-context*
+Any Vim type can be associated as a context with a quickfix or location list.
+The |setqflist()| and the |setloclist()| functions can be used to associate a
+context with a quickfix and a location list respectively. The |getqflist()|
+and the |getloclist()| functions can be used to retrieve the context of a
+quickfix and a location list respectively. This is useful for a Vim plugin
+dealing with multiple quickfix/location lists.
+Examples: >
+
+ let somectx = {'name' : 'Vim', 'type' : 'Editor'}
+ call setqflist([], 'a', {'context' : somectx})
+ echo getqflist({'context' : 1})
+
+ let newctx = ['red', 'green', 'blue']
+ call setloclist(2, [], 'a', {'id' : qfid, 'context' : newctx})
+ echo getloclist(2, {'id' : qfid, 'context' : 1})
+<
+ *quickfix-parse*
+You can parse a list of lines using 'errorformat' without creating or
+modifying a quickfix list using the |getqflist()| function. Examples: >
+ echo getqflist({'lines' : ["F1:10:Line10", "F2:20:Line20"]})
+ echo getqflist({'lines' : systemlist('grep -Hn quickfix *')})
+This returns a dictionary where the "items" key contains the list of quickfix
+entries parsed from lines. The following shows how to use a custom
+'errorformat' to parse the lines without modifying the 'errorformat' option: >
+ echo getqflist({'efm' : '%f#%l#%m', 'lines' : ['F1#10#Line']})
+<
+
+EXECUTE A COMMAND IN ALL THE BUFFERS IN QUICKFIX OR LOCATION LIST:
+ *:cdo*
+:cdo[!] {cmd} Execute {cmd} in each valid entry in the quickfix list.
+ It works like doing this: >
+ :cfirst
+ :{cmd}
+ :cnext
+ :{cmd}
+ etc.
+< When the current file can't be |abandon|ed and the [!]
+ is not present, the command fails.
+ When going to the next entry fails execution stops.
+ The last buffer (or where an error occurred) becomes
+ the current buffer.
+ {cmd} can contain '|' to concatenate several commands.
+
+ Only valid entries in the quickfix list are used.
+ A range can be used to select entries, e.g.: >
+ :10,$cdo cmd
+< To skip entries 1 to 9.
+
+ Note: While this command is executing, the Syntax
+ autocommand event is disabled by adding it to
+ 'eventignore'. This considerably speeds up editing
+ each buffer.
+ Also see |:bufdo|, |:tabdo|, |:argdo|, |:windo|,
+ |:ldo|, |:cfdo| and |:lfdo|.
+
+ *:cfdo*
+:cfdo[!] {cmd} Execute {cmd} in each file in the quickfix list.
+ It works like doing this: >
+ :cfirst
+ :{cmd}
+ :cnfile
+ :{cmd}
+ etc.
+< Otherwise it works the same as `:cdo`.
+
+ *:ldo*
+:ld[o][!] {cmd} Execute {cmd} in each valid entry in the location list
+ for the current window.
+ It works like doing this: >
+ :lfirst
+ :{cmd}
+ :lnext
+ :{cmd}
+ etc.
+< Only valid entries in the location list are used.
+ Otherwise it works the same as `:cdo`.
+
+ *:lfdo*
+:lfdo[!] {cmd} Execute {cmd} in each file in the location list for
+ the current window.
+ It works like doing this: >
+ :lfirst
+ :{cmd}
+ :lnfile
+ :{cmd}
+ etc.
+< Otherwise it works the same as `:ldo`.
+
+FILTERING A QUICKFIX OR LOCATION LIST:
+ *cfilter-plugin* *:Cfilter* *:Lfilter*
+If you have too many entries in a quickfix list, you can use the cfilter
+plugin to reduce the number of entries. Load the plugin with: >
+
+ packadd cfilter
+
+Then you can use the following commands to filter a quickfix/location list: >
+
+ :Cfilter[!] /{pat}/
+ :Lfilter[!] /{pat}/
+
+The |:Cfilter| command creates a new quickfix list from the entries matching
+{pat} in the current quickfix list. {pat} is a Vim |regular-expression|
+pattern. Both the file name and the text of the entries are matched against
+{pat}. If the optional ! is supplied, then the entries not matching {pat} are
+used. The pattern can be optionally enclosed using one of the following
+characters: ', ", /. If the pattern is empty, then the last used search
+pattern is used.
+
+The |:Lfilter| command does the same as |:Cfilter| but operates on the current
+location list.
+
+The current quickfix/location list is not modified by these commands, so you
+can go back to the unfiltered list using the |:colder|/|:lolder| command.
+
+=============================================================================
+2. The error window *quickfix-window*
+
+ *:cope* *:copen* *w:quickfix_title*
+:cope[n] [height] Open a window to show the current list of errors.
+
+ When [height] is given, the window becomes that high
+ (if there is room). When [height] is omitted the
+ window is made ten lines high.
+
+ If there already is a quickfix window, it will be made
+ the current window. It is not possible to open a
+ second quickfix window. If [height] is given the
+ existing window will be resized to it.
+
+ *quickfix-buffer*
+ The window will contain a special buffer, with
+ 'buftype' equal to "quickfix". Don't change this!
+ The window will have the w:quickfix_title variable set
+ which will indicate the command that produced the
+ quickfix list. This can be used to compose a custom
+ status line if the value of 'statusline' is adjusted
+ properly. Whenever this buffer is modified by a
+ quickfix command or function, the |b:changedtick|
+ variable is incremented. You can get the number of
+ this buffer using the getqflist() and getloclist()
+ functions by passing the "qfbufnr" item. For a
+ location list, this buffer is wiped out when the
+ location list is removed.
+
+ *:lop* *:lopen*
+:lop[en] [height] Open a window to show the location list for the
+ current window. Works only when the location list for
+ the current window is present. You can have more than
+ one location window opened at a time. Otherwise, it
+ acts the same as ":copen".
+
+ *:ccl* *:cclose*
+:ccl[ose] Close the quickfix window.
+
+ *:lcl* *:lclose*
+:lcl[ose] Close the window showing the location list for the
+ current window.
+
+ *:cw* *:cwindow*
+:cw[indow] [height] Open the quickfix window when there are recognized
+ errors. If the window is already open and there are
+ no recognized errors, close the window.
+
+ *:lw* *:lwindow*
+:lw[indow] [height] Same as ":cwindow", except use the window showing the
+ location list for the current window.
+
+ *:cbo* *:cbottom*
+:cbo[ttom] Put the cursor in the last line of the quickfix window
+ and scroll to make it visible. This is useful for
+ when errors are added by an asynchronous callback.
+ Only call it once in a while if there are many
+ updates to avoid a lot of redrawing.
+
+ *:lbo* *:lbottom*
+:lbo[ttom] Same as ":cbottom", except use the window showing the
+ location list for the current window.
+
+Normally the quickfix window is at the bottom of the screen. If there are
+vertical splits, it's at the bottom of the rightmost column of windows. To
+make it always occupy the full width: >
+ :botright cwindow
+You can move the window around with |window-moving| commands.
+For example, to move it to the top: CTRL-W K
+The 'winfixheight' option will be set, which means that the window will mostly
+keep its height, ignoring 'winheight' and 'equalalways'. You can change the
+height manually (e.g., by dragging the status line above it with the mouse).
+
+In the quickfix window, each line is one error. The line number is equal to
+the error number. The current entry is highlighted with the QuickFixLine
+highlighting. You can change it to your liking, e.g.: >
+ :hi QuickFixLine ctermbg=Yellow guibg=Yellow
+
+You can use ":.cc" to jump to the error under the cursor.
+Hitting the <Enter> key or double-clicking the mouse on a line has the same
+effect. The file containing the error is opened in the window above the
+quickfix window. If there already is a window for that file, it is used
+instead. If the buffer in the used window has changed, and the error is in
+another file, jumping to the error will fail. You will first have to make
+sure the window contains a buffer which can be abandoned.
+
+When you select a file from the quickfix window, the following steps are used
+to find a window to edit the file:
+
+1. If a window displaying the selected file is present in the current tabpage
+ (starting with the window before the quickfix window), then that window is
+ used.
+2. If the above step fails and if 'switchbuf' contains "usetab" and a window
+ displaying the selected file is present in any one of the tabpages
+ (starting with the first tabpage) then that window is used.
+3. If the above step fails then a window in the current tabpage displaying a
+ buffer with 'buftype' not set (starting with the window before the quickfix
+ window) is used.
+4. If the above step fails and if 'switchbuf' contains "uselast", then the
+ previously accessed window is used.
+5. If the above step fails then the window before the quickfix window is used.
+ If there is no previous window, then the window after the quickfix window
+ is used.
+6. If the above step fails, then a new horizontally split window above the
+ quickfix window is used.
+
+ *CTRL-W_<Enter>* *CTRL-W_<CR>*
+You can use CTRL-W <Enter> to open a new window and jump to the error there.
+
+When the quickfix window has been filled, two autocommand events are
+triggered. First the 'filetype' option is set to "qf", which triggers the
+FileType event (also see |qf.vim|). Then the BufReadPost event is triggered,
+using "quickfix" for the buffer name. This can be used to perform some action
+on the listed errors. Example: >
+ au BufReadPost quickfix setlocal modifiable
+ \ | silent exe 'g/^/s//\=line(".") .. " "/'
+ \ | setlocal nomodifiable
+This prepends the line number to each line. Note the use of "\=" in the
+substitute string of the ":s" command, which is used to evaluate an
+expression.
+The BufWinEnter event is also triggered, again using "quickfix" for the buffer
+name.
+
+Note: When adding to an existing quickfix list the autocommand are not
+triggered.
+
+Note: Making changes in the quickfix window has no effect on the list of
+errors. 'modifiable' is off to avoid making changes. If you delete or insert
+lines anyway, the relation between the text and the error number is messed up.
+If you really want to do this, you could write the contents of the quickfix
+window to a file and use ":cfile" to have it parsed and used as the new error
+list.
+
+ *location-list-window*
+The location list window displays the entries in a location list. When you
+open a location list window, it is created below the current window and
+displays the location list for the current window. The location list window
+is similar to the quickfix window, except that you can have more than one
+location list window open at a time. When you use a location list command in
+this window, the displayed location list is used.
+
+When you select a file from the location list window, the following steps are
+used to find a window to edit the file:
+
+1. If a non-quickfix window associated with the location list is present in
+ the current tabpage, then that window is used.
+2. If the above step fails and if the file is already opened in another window
+ in the current tabpage, then that window is used.
+3. If the above step fails and 'switchbuf' contains "usetab" and if the file
+ is opened in a window in any one of the tabpages, then that window is used.
+4. If the above step fails then a window in the current tabpage showing a
+ buffer with 'buftype' not set is used.
+5. If the above step fails, then the file is edited in a new window.
+
+In all of the above cases, if the location list for the selected window is not
+yet set, then it is set to the location list displayed in the location list
+window.
+
+ *quickfix-window-ID*
+You can use the |getqflist()| and |getloclist()| functions to obtain the
+window ID of the quickfix window and location list window respectively (if
+present). Examples: >
+ echo getqflist({'winid' : 1}).winid
+ echo getloclist(2, {'winid' : 1}).winid
+<
+ *getqflist-examples*
+The |getqflist()| and |getloclist()| functions can be used to get the various
+attributes of a quickfix and location list respectively. Some examples for
+using these functions are below:
+>
+ " get the title of the current quickfix list
+ :echo getqflist({'title' : 0}).title
+
+ " get the identifier of the current quickfix list
+ :let qfid = getqflist({'id' : 0}).id
+
+ " get the identifier of the fourth quickfix list in the stack
+ :let qfid = getqflist({'nr' : 4, 'id' : 0}).id
+
+ " check whether a quickfix list with a specific identifier exists
+ :if getqflist({'id' : qfid}).id == qfid
+
+ " get the index of the current quickfix list in the stack
+ :let qfnum = getqflist({'nr' : 0}).nr
+
+ " get the items of a quickfix list specified by an identifier
+ :echo getqflist({'id' : qfid, 'items' : 0}).items
+
+ " get the number of entries in a quickfix list specified by an id
+ :echo getqflist({'id' : qfid, 'size' : 0}).size
+
+ " get the context of the third quickfix list in the stack
+ :echo getqflist({'nr' : 3, 'context' : 0}).context
+
+ " get the number of quickfix lists in the stack
+ :echo getqflist({'nr' : '$'}).nr
+
+ " get the number of times the current quickfix list is changed
+ :echo getqflist({'changedtick' : 0}).changedtick
+
+ " get the current entry in a quickfix list specified by an identifier
+ :echo getqflist({'id' : qfid, 'idx' : 0}).idx
+
+ " get all the quickfix list attributes using an identifier
+ :echo getqflist({'id' : qfid, 'all' : 0})
+
+ " parse text from a List of lines and return a quickfix list
+ :let myList = ["a.java:10:L10", "b.java:20:L20"]
+ :echo getqflist({'lines' : myList}).items
+
+ " parse text using a custom 'efm' and return a quickfix list
+ :echo getqflist({'lines' : ['a.c#10#Line 10'], 'efm':'%f#%l#%m'}).items
+
+ " get the quickfix list window id
+ :echo getqflist({'winid' : 0}).winid
+
+ " get the quickfix list window buffer number
+ :echo getqflist({'qfbufnr' : 0}).qfbufnr
+
+ " get the context of the current location list
+ :echo getloclist(0, {'context' : 0}).context
+
+ " get the location list window id of the third window
+ :echo getloclist(3, {'winid' : 0}).winid
+
+ " get the location list window buffer number of the third window
+ :echo getloclist(3, {'qfbufnr' : 0}).qfbufnr
+
+ " get the file window id of a location list window (winnr: 4)
+ :echo getloclist(4, {'filewinid' : 0}).filewinid
+<
+ *setqflist-examples*
+The |setqflist()| and |setloclist()| functions can be used to set the various
+attributes of a quickfix and location list respectively. Some examples for
+using these functions are below:
+>
+ " create an empty quickfix list with a title and a context
+ :let t = 'Search results'
+ :let c = {'cmd' : 'grep'}
+ :call setqflist([], ' ', {'title' : t, 'context' : c})
+
+ " set the title of the current quickfix list
+ :call setqflist([], 'a', {'title' : 'Mytitle'})
+
+ " change the current entry in the list specified by an identifier
+ :call setqflist([], 'a', {'id' : qfid, 'idx' : 10})
+
+ " set the context of a quickfix list specified by an identifier
+ :call setqflist([], 'a', {'id' : qfid, 'context' : {'val' : 100}})
+
+ " create a new quickfix list from a command output
+ :call setqflist([], ' ', {'lines' : systemlist('grep -Hn main *.c')})
+
+ " parse text using a custom efm and add to a particular quickfix list
+ :call setqflist([], 'a', {'id' : qfid,
+ \ 'lines' : ["a.c#10#L10", "b.c#20#L20"], 'efm':'%f#%l#%m'})
+
+ " add items to the quickfix list specified by an identifier
+ :let newItems = [{'filename' : 'a.txt', 'lnum' : 10, 'text' : "Apple"},
+ \ {'filename' : 'b.txt', 'lnum' : 20, 'text' : "Orange"}]
+ :call setqflist([], 'a', {'id' : qfid, 'items' : newItems})
+
+ " empty a quickfix list specified by an identifier
+ :call setqflist([], 'r', {'id' : qfid, 'items' : []})
+
+ " free all the quickfix lists in the stack
+ :call setqflist([], 'f')
+
+ " set the title of the fourth quickfix list
+ :call setqflist([], 'a', {'nr' : 4, 'title' : 'SomeTitle'})
+
+ " create a new quickfix list at the end of the stack
+ :call setqflist([], ' ', {'nr' : '$',
+ \ 'lines' : systemlist('grep -Hn class *.java')})
+
+ " create a new location list from a command output
+ :call setloclist(0, [], ' ', {'lines' : systemlist('grep -Hn main *.c')})
+
+ " replace the location list entries for the third window
+ :call setloclist(3, [], 'r', {'items' : newItems})
+<
+=============================================================================
+3. Using more than one list of errors *quickfix-error-lists*
+
+So far has been assumed that there is only one list of errors. Actually the
+ten last used lists are remembered. When starting a new list, the previous
+ones are automatically kept. Two commands can be used to access older error
+lists. They set one of the existing error lists as the current one.
+
+ *:colder* *:col* *E380*
+:col[der] [count] Go to older error list. When [count] is given, do
+ this [count] times. When already at the oldest error
+ list, an error message is given.
+
+ *:lolder* *:lol*
+:lol[der] [count] Same as `:colder`, except use the location list for
+ the current window instead of the quickfix list.
+
+ *:cnewer* *:cnew* *E381*
+:cnew[er] [count] Go to newer error list. When [count] is given, do
+ this [count] times. When already at the newest error
+ list, an error message is given.
+
+ *:lnewer* *:lnew*
+:lnew[er] [count] Same as `:cnewer`, except use the location list for
+ the current window instead of the quickfix list.
+
+ *:chistory* *:chi*
+:[count]chi[story] Show the list of error lists. The current list is
+ marked with ">". The output looks like:
+ error list 1 of 3; 43 errors :make ~
+ > error list 2 of 3; 0 errors :helpgrep tag ~
+ error list 3 of 3; 15 errors :grep ex_help *.c ~
+
+ When [count] is given, then the count'th quickfix
+ list is made the current list. Example: >
+ " Make the 4th quickfix list current
+ :4chistory
+<
+ *:lhistory* *:lhi*
+:[count]lhi[story] Show the list of location lists, otherwise like
+ `:chistory`.
+
+When adding a new error list, it becomes the current list.
+
+When ":colder" has been used and ":make" or ":grep" is used to add a new error
+list, one newer list is overwritten. This is especially useful if you are
+browsing with ":grep" |grep|. If you want to keep the more recent error
+lists, use ":cnewer 99" first.
+
+To get the number of lists in the quickfix and location list stack, you can
+use the |getqflist()| and |getloclist()| functions respectively with the list
+number set to the special value '$'. Examples: >
+ echo getqflist({'nr' : '$'}).nr
+ echo getloclist(3, {'nr' : '$'}).nr
+To get the number of the current list in the stack: >
+ echo getqflist({'nr' : 0}).nr
+<
+=============================================================================
+4. Using :make *:make_makeprg*
+
+ *:mak* *:make*
+:mak[e][!] [arguments] 1. All relevant |QuickFixCmdPre| autocommands are
+ executed.
+ 2. If the 'autowrite' option is on, write any changed
+ buffers
+ 3. An errorfile name is made from 'makeef'. If
+ 'makeef' doesn't contain "##", and a file with this
+ name already exists, it is deleted.
+ 4. The program given with the 'makeprg' option is
+ started (default "make") with the optional
+ [arguments] and the output is saved in the
+ errorfile (for Unix it is also echoed on the
+ screen).
+ 5. The errorfile is read using 'errorformat'.
+ 6. All relevant |QuickFixCmdPost| autocommands are
+ executed. See example below.
+ 7. If [!] is not given the first error is jumped to.
+ 8. The errorfile is deleted.
+ 9. You can now move through the errors with commands
+ like |:cnext| and |:cprevious|, see above.
+ This command does not accept a comment, any "
+ characters are considered part of the arguments.
+ If the encoding of the program output differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+ *:lmak* *:lmake*
+:lmak[e][!] [arguments]
+ Same as ":make", except the location list for the
+ current window is used instead of the quickfix list.
+
+The ":make" command executes the command given with the 'makeprg' option.
+This is done by passing the command to the shell given with the 'shell'
+option. This works almost like typing
+
+ ":!{makeprg} [arguments] {shellpipe} {errorfile}".
+
+{makeprg} is the string given with the 'makeprg' option. Any command can be
+used, not just "make". Characters '%' and '#' are expanded as usual on a
+command-line. You can use "%<" to insert the current file name without
+extension, or "#<" to insert the alternate file name without extension, for
+example: >
+ :set makeprg=make\ #<.o
+
+[arguments] is anything that is typed after ":make".
+{shellpipe} is the 'shellpipe' option.
+{errorfile} is the 'makeef' option, with ## replaced to make it unique.
+
+The placeholder "$*" can be used for the argument list in {makeprg} if the
+command needs some additional characters after its arguments. The $* is
+replaced then by all arguments. Example: >
+ :set makeprg=latex\ \\\\nonstopmode\ \\\\input\\{$*}
+or simpler >
+ :let &mp = 'latex \\nonstopmode \\input\{$*}'
+"$*" can be given multiple times, for example: >
+ :set makeprg=gcc\ -o\ $*\ $*
+
+The 'shellpipe' option defaults to ">" for the Amiga and ">%s 2>&1" for Win32.
+This means that the output of the compiler is saved in a file and not shown on
+the screen directly. For Unix "| tee" is used. The compiler output is shown
+on the screen and saved in a file the same time. Depending on the shell used
+"|& tee" or "2>&1| tee" is the default, so stderr output will be included.
+
+If 'shellpipe' is empty, the {errorfile} part will be omitted. This is useful
+for compilers that write to an errorfile themselves (e.g., Manx's Amiga C).
+
+
+Using QuickFixCmdPost to fix the encoding ~
+
+It may be that 'encoding' is set to an encoding that differs from the messages
+your build program produces. This example shows how to fix this after Vim has
+read the error messages: >
+
+ function QfMakeConv()
+ let qflist = getqflist()
+ for i in qflist
+ let i.text = iconv(i.text, "cp936", "utf-8")
+ endfor
+ call setqflist(qflist)
+ endfunction
+
+ au QuickfixCmdPost make call QfMakeConv()
+
+(Example by Faque Cheng)
+Another option is using 'makeencoding'.
+
+==============================================================================
+5. Using :vimgrep and :grep *grep* *lid*
+
+Vim has two ways to find matches for a pattern: Internal and external. The
+advantage of the internal grep is that it works on all systems and uses the
+powerful Vim search patterns. An external grep program can be used when the
+Vim grep does not do what you want.
+
+The internal method will be slower, because files are read into memory. The
+advantages are:
+- Line separators and encoding are automatically recognized, as if a file is
+ being edited.
+- Uses Vim search patterns. Multi-line patterns can be used.
+- When plugins are enabled: compressed and remote files can be searched.
+ |gzip| |netrw|
+
+To be able to do this Vim loads each file as if it is being edited. When
+there is no match in the file the associated buffer is wiped out again. The
+'hidden' option is ignored here to avoid running out of memory or file
+descriptors when searching many files. However, when the |:hide| command
+modifier is used the buffers are kept loaded. This makes following searches
+in the same files a lot faster.
+
+Note that |:copen| (or |:lopen| for |:lgrep|) may be used to open a buffer
+containing the search results in linked form. The |:silent| command may be
+used to suppress the default full screen grep output. The ":grep!" form of
+the |:grep| command doesn't jump to the first match automatically. These
+commands can be combined to create a NewGrep command: >
+
+ command! -nargs=+ NewGrep execute 'silent grep! <args>' | copen 42
+
+
+5.1 using Vim's internal grep
+
+ *:vim* *:vimgrep* *E682* *E683*
+:vim[grep][!] /{pattern}/[g][j][f] {file} ...
+ Search for {pattern} in the files {file} ... and set
+ the error list to the matches. Files matching
+ 'wildignore' are ignored; files in 'suffixes' are
+ searched last.
+
+ {pattern} is a Vim search pattern. Instead of
+ enclosing it in / any non-ID character (see
+ |'isident'|) can be used, so long as it does not
+ appear in {pattern}.
+ 'ignorecase' applies. To overrule it put |/\c| in the
+ pattern to ignore case or |/\C| to match case.
+ 'smartcase' is not used.
+ If {pattern} is empty (e.g. // is specified), the last
+ used search pattern is used. |last-pattern|
+
+ Flags:
+ 'g' Without the 'g' flag each line is added only
+ once. With 'g' every match is added.
+
+ 'j' Without the 'j' flag Vim jumps to the first
+ match. With 'j' only the quickfix list is
+ updated. With the [!] any changes in the current
+ buffer are abandoned.
+
+ 'f' When the 'f' flag is specified, fuzzy string
+ matching is used to find matching lines. In this
+ case, {pattern} is treated as a literal string
+ instead of a regular expression. See
+ |fuzzy-matching| for more information about fuzzy
+ matching strings.
+
+ |QuickFixCmdPre| and |QuickFixCmdPost| are triggered.
+ A file that is opened for matching may use a buffer
+ number, but it is reused if possible to avoid
+ consuming buffer numbers.
+
+:{count}vim[grep] ...
+ When a number is put before the command this is used
+ as the maximum number of matches to find. Use
+ ":1vimgrep pattern file" to find only the first.
+ Useful if you only want to check if there is a match
+ and quit quickly when it's found.
+
+ Every second or so the searched file name is displayed
+ to give you an idea of the progress made.
+ Examples: >
+ :vimgrep /an error/ *.c
+ :vimgrep /\<FileName\>/ *.h include/*
+ :vimgrep /myfunc/ **/*.c
+< For the use of "**" see |starstar-wildcard|.
+
+:vim[grep][!] {pattern} {file} ...
+ Like above, but instead of enclosing the pattern in a
+ non-ID character use a white-separated pattern. The
+ pattern must start with an ID character.
+ Example: >
+ :vimgrep Error *.c
+<
+ *:lv* *:lvimgrep*
+:lv[imgrep][!] /{pattern}/[g][j][f] {file} ...
+:lv[imgrep][!] {pattern} {file} ...
+ Same as ":vimgrep", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:vimgrepa* *:vimgrepadd*
+:vimgrepa[dd][!] /{pattern}/[g][j][f] {file} ...
+:vimgrepa[dd][!] {pattern} {file} ...
+ Just like ":vimgrep", but instead of making a new list
+ of errors the matches are appended to the current
+ list.
+
+ *:lvimgrepa* *:lvimgrepadd*
+:lvimgrepa[dd][!] /{pattern}/[g][j][f] {file} ...
+:lvimgrepa[dd][!] {pattern} {file} ...
+ Same as ":vimgrepadd", except the location list for
+ the current window is used instead of the quickfix
+ list.
+
+5.2 External grep
+
+Vim can interface with "grep" and grep-like programs (such as the GNU
+id-utils) in a similar way to its compiler integration (see |:make| above).
+
+[Unix trivia: The name for the Unix "grep" command comes from ":g/re/p", where
+"re" stands for Regular Expression.]
+
+ *:gr* *:grep*
+:gr[ep][!] [arguments] Just like ":make", but use 'grepprg' instead of
+ 'makeprg' and 'grepformat' instead of 'errorformat'.
+ When 'grepprg' is "internal" this works like
+ |:vimgrep|. Note that the pattern needs to be
+ enclosed in separator characters then.
+ If the encoding of the program output differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+ *:lgr* *:lgrep*
+:lgr[ep][!] [arguments] Same as ":grep", except the location list for the
+ current window is used instead of the quickfix list.
+
+ *:grepa* *:grepadd*
+:grepa[dd][!] [arguments]
+ Just like ":grep", but instead of making a new list of
+ errors the matches are appended to the current list.
+ Example: >
+ :call setqflist([])
+ :bufdo grepadd! something %
+< The first command makes a new error list which is
+ empty. The second command executes "grepadd" for each
+ listed buffer. Note the use of ! to avoid that
+ ":grepadd" jumps to the first error, which is not
+ allowed with |:bufdo|.
+ An example that uses the argument list and avoids
+ errors for files without matches: >
+ :silent argdo try
+ \ | grepadd! something %
+ \ | catch /E480:/
+ \ | endtry"
+<
+ If the encoding of the program output differs from the
+ 'encoding' option, you can use the 'makeencoding'
+ option to specify the encoding.
+
+ *:lgrepa* *:lgrepadd*
+:lgrepa[dd][!] [arguments]
+ Same as ":grepadd", except the location list for the
+ current window is used instead of the quickfix list.
+
+5.3 Setting up external grep
+
+If you have a standard "grep" program installed, the :grep command may work
+well with the defaults. The syntax is very similar to the standard command: >
+
+ :grep foo *.c
+
+Will search all files with the .c extension for the substring "foo". The
+arguments to :grep are passed straight to the "grep" program, so you can use
+whatever options your "grep" supports.
+
+By default, :grep invokes grep with the -n option (show file and line
+numbers). You can change this with the 'grepprg' option. You will need to set
+'grepprg' if:
+
+a) You are using a program that isn't called "grep"
+b) You have to call grep with a full path
+c) You want to pass other options automatically (e.g. case insensitive
+ search.)
+
+Once "grep" has executed, Vim parses the results using the 'grepformat'
+option. This option works in the same way as the 'errorformat' option - see
+that for details. You may need to change 'grepformat' from the default if
+your grep outputs in a non-standard format, or you are using some other
+program with a special format.
+
+Once the results are parsed, Vim loads the first file containing a match and
+jumps to the appropriate line, in the same way that it jumps to a compiler
+error in |quickfix| mode. You can then use the |:cnext|, |:clist|, etc.
+commands to see the other matches.
+
+
+5.4 Using :grep with id-utils
+
+You can set up :grep to work with the GNU id-utils like this: >
+
+ :set grepprg=lid\ -Rgrep\ -s
+ :set grepformat=%f:%l:%m
+
+then >
+ :grep (regexp)
+
+works just as you'd expect.
+(provided you remembered to mkid first :)
+
+
+5.5 Browsing source code with :vimgrep or :grep
+
+Using the stack of error lists that Vim keeps, you can browse your files to
+look for functions and the functions they call. For example, suppose that you
+have to add an argument to the read_file() function. You enter this command: >
+
+ :vimgrep /\<read_file\>/ *.c
+
+You use ":cn" to go along the list of matches and add the argument. At one
+place you have to get the new argument from a higher level function msg(), and
+need to change that one too. Thus you use: >
+
+ :vimgrep /\<msg\>/ *.c
+
+While changing the msg() functions, you find another function that needs to
+get the argument from a higher level. You can again use ":vimgrep" to find
+these functions. Once you are finished with one function, you can use >
+
+ :colder
+
+to go back to the previous one.
+
+This works like browsing a tree: ":vimgrep" goes one level deeper, creating a
+list of branches. ":colder" goes back to the previous level. You can mix
+this use of ":vimgrep" and "colder" to browse all the locations in a tree-like
+way. If you do this consistently, you will find all locations without the
+need to write down a "todo" list.
+
+=============================================================================
+6. Selecting a compiler *compiler-select*
+
+ *:comp* *:compiler* *E666*
+:comp[iler][!] {name} Set options to work with compiler {name}.
+ Without the "!" options are set for the
+ current buffer. With "!" global options are
+ set.
+ If you use ":compiler foo" in "file.foo" and
+ then ":compiler! bar" in another buffer, Vim
+ will keep on using "foo" in "file.foo".
+ {not available when compiled without the
+ |+eval| feature}
+
+
+The Vim plugins in the "compiler" directory will set options to use the
+selected compiler. For `:compiler` local options are set, for `:compiler!`
+global options.
+ *current_compiler*
+To support older Vim versions, the plugins always use "current_compiler" and
+not "b:current_compiler". What the command actually does is the following:
+
+- Delete the "current_compiler" and "b:current_compiler" variables.
+- Define the "CompilerSet" user command. With "!" it does ":set", without "!"
+ it does ":setlocal".
+- Execute ":runtime! compiler/{name}.vim". The plugins are expected to set
+ options with "CompilerSet" and set the "current_compiler" variable to the
+ name of the compiler.
+- Delete the "CompilerSet" user command.
+- Set "b:current_compiler" to the value of "current_compiler".
+- Without "!" the old value of "current_compiler" is restored.
+
+
+For writing a compiler plugin, see |write-compiler-plugin|.
+
+
+DOTNET *compiler-dotnet*
+
+The .NET CLI compiler outputs both errors and warnings by default. The output
+may be limited to include only errors, by setting the g:dotnet_errors_only
+variable to |v:true|.
+
+The associated project name is included in each error and warning. To suppress
+the project name, set the g:dotnet_show_project_file variable to |v:false|.
+
+Example: limit output to only display errors, and suppress the project name: >
+ let dotnet_errors_only = v:true
+ let dotnet_show_project_file = v:false
+ compiler dotnet
+<
+
+GCC *quickfix-gcc* *compiler-gcc*
+
+There's one variable you can set for the GCC compiler:
+
+g:compiler_gcc_ignore_unmatched_lines
+ Ignore lines that don't match any patterns
+ defined for GCC. Useful if output from
+ commands run from make are generating false
+ positives.
+
+
+MANX AZTEC C *quickfix-manx* *compiler-manx*
+
+To use Vim with Manx's Aztec C compiler on the Amiga you should do the
+following:
+- Set the CCEDIT environment variable with the command: >
+ mset "CCEDIT=vim -q"
+- Compile with the -qf option. If the compiler finds any errors, Vim is
+ started and the cursor is positioned on the first error. The error message
+ will be displayed on the last line. You can go to other errors with the
+ commands mentioned above. You can fix the errors and write the file(s).
+- If you exit Vim normally the compiler will re-compile the same file. If you
+ exit with the :cq command, the compiler will terminate. Do this if you
+ cannot fix the error, or if another file needs to be compiled first.
+
+There are some restrictions to the Quickfix mode on the Amiga. The
+compiler only writes the first 25 errors to the errorfile (Manx's
+documentation does not say how to get more). If you want to find the others,
+you will have to fix a few errors and exit the editor. After recompiling,
+up to 25 remaining errors will be found.
+
+If Vim was started from the compiler, the :sh and some :! commands will not
+work, because Vim is then running in the same process as the compiler and
+stdin (standard input) will not be interactive.
+
+
+PERL *quickfix-perl* *compiler-perl*
+
+The Perl compiler plugin doesn't actually compile, but invokes Perl's internal
+syntax checking feature and parses the output for possible errors so you can
+correct them in quick-fix mode.
+
+Warnings are forced regardless of "no warnings" or "$^W = 0" within the file
+being checked. To disable this set g:perl_compiler_force_warnings to a zero
+value. For example: >
+ let g:perl_compiler_force_warnings = 0
+
+
+PYUNIT COMPILER *compiler-pyunit*
+
+This is not actually a compiler, but a unit testing framework for the
+Python language. It is included into standard Python distribution
+starting from version 2.0. For older versions, you can get it from
+http://pyunit.sourceforge.net.
+
+When you run your tests with the help of the framework, possible errors
+are parsed by Vim and presented for you in quick-fix mode.
+
+Unfortunately, there is no standard way to run the tests.
+The alltests.py script seems to be used quite often, that's all.
+Useful values for the 'makeprg' options therefore are:
+ setlocal makeprg=./alltests.py " Run a testsuite
+ setlocal makeprg=python\ %:S " Run a single testcase
+
+Also see http://vim.sourceforge.net/tip_view.php?tip_id=280.
+
+
+TEX COMPILER *compiler-tex*
+
+Included in the distribution compiler for TeX ($VIMRUNTIME/compiler/tex.vim)
+uses make command if possible. If the compiler finds a file named "Makefile"
+or "makefile" in the current directory, it supposes that you want to process
+your *TeX files with make, and the makefile does the right work. In this case
+compiler sets 'errorformat' for *TeX output and leaves 'makeprg' untouched. If
+neither "Makefile" nor "makefile" is found, the compiler will not use make.
+You can force the compiler to ignore makefiles by defining
+b:tex_ignore_makefile or g:tex_ignore_makefile variable (they are checked for
+existence only).
+
+If the compiler chose not to use make, it needs to choose a right program for
+processing your input. If b:tex_flavor or g:tex_flavor (in this precedence)
+variable exists, it defines TeX flavor for :make (actually, this is the name
+of executed command), and if both variables do not exist, it defaults to
+"latex". For example, while editing chapter2.tex \input-ed from mypaper.tex
+written in AMS-TeX: >
+
+ :let b:tex_flavor = 'amstex'
+ :compiler tex
+< [editing...] >
+ :make mypaper
+
+Note that you must specify a name of the file to process as an argument (to
+process the right file when editing \input-ed or \include-ed file; portable
+solution for substituting % for no arguments is welcome). This is not in the
+semantics of make, where you specify a target, not source, but you may specify
+filename without extension ".tex" and mean this as "make filename.dvi or
+filename.pdf or filename.some_result_extension according to compiler".
+
+Note: tex command line syntax is set to usable both for MikTeX (suggestion
+by Srinath Avadhanula) and teTeX (checked by Artem Chuprina). Suggestion
+from |errorformat-LaTeX| is too complex to keep it working for different
+shells and OSes and also does not allow to use other available TeX options,
+if any. If your TeX doesn't support "-interaction=nonstopmode", please
+report it with different means to express \nonstopmode from the command line.
+
+=============================================================================
+7. The error format *error-file-format*
+
+ *errorformat* *E372* *E373* *E374*
+ *E375* *E376* *E377* *E378*
+The 'errorformat' option specifies a list of formats that are recognized. The
+first format that matches with an error message is used. You can add several
+formats for different messages your compiler produces, or even entries for
+multiple compilers. See |efm-entries|.
+
+Each entry in 'errorformat' is a scanf-like string that describes the format.
+First, you need to know how scanf works. Look in the documentation of your
+C compiler. Below you find the % items that Vim understands. Others are
+invalid.
+
+Special characters in 'errorformat' are comma and backslash. See
+|efm-entries| for how to deal with them. Note that a literal "%" is matched
+by "%%", thus it is not escaped with a backslash.
+Keep in mind that in the `:make` and `:grep` output all NUL characters are
+replaced with SOH (0x01).
+
+Note: By default the difference between upper and lowercase is ignored. If
+you want to match case, add "\C" to the pattern |/\C|.
+
+Vim will read lines of any length, but only the first 4095 bytes are used, the
+rest is ignored. Items can only be 1023 bytes long.
+
+
+Basic items
+
+ %f file name (finds a string)
+ %b buffer number (finds a number)
+ %o module name (finds a string)
+ %l line number (finds a number)
+ %e end line number (finds a number)
+ %c column number (finds a number representing character
+ column of the error, byte index, a <tab> is 1
+ character column)
+ %v virtual column number (finds a number representing
+ screen column of the error (1 <tab> == 8 screen
+ columns))
+ %k end column number (finds a number representing
+ the character column of the error, byte index, or a
+ number representing screen end column of the error if
+ it's used with %v)
+ %t error type (finds a single character):
+ e - error message
+ w - warning message
+ i - info message
+ n - note message
+ %n error number (finds a number)
+ %m error message (finds a string)
+ %r matches the "rest" of a single-line file message %O/P/Q
+ %p pointer line (finds a sequence of '-', '.', ' ' or
+ tabs and uses the length for the column number)
+ %*{conv} any scanf non-assignable conversion
+ %% the single '%' character
+ %s search text (finds a string)
+
+The "%f" conversion may depend on the current 'isfname' setting. "~/" is
+expanded to the home directory and environment variables are expanded.
+
+The "%f" and "%m" conversions have to detect the end of the string. This
+normally happens by matching following characters and items. When nothing is
+following the rest of the line is matched. If "%f" is followed by a '%' or a
+backslash, it will look for a sequence of 'isfname' characters.
+
+On MS-Windows a leading "C:" will be included in "%f", even when using "%f:".
+This means that a file name which is a single alphabetical letter will not be
+detected.
+
+The "%b" conversion is used to parse a buffer number. This is useful for
+referring to lines in a scratch buffer or a buffer with no name. If a buffer
+with the matching number doesn't exist, then that line is used as a non-error
+line.
+
+The "%p" conversion is normally followed by a "^". It's used for compilers
+that output a line like: >
+ ^
+or >
+ ---------^
+to indicate the column of the error. This is to be used in a multi-line error
+message. See |errorformat-javac| for a useful example.
+
+The "%s" conversion specifies the text to search for, to locate the error line.
+The text is used as a literal string. The anchors "^" and "$" are added to
+the text to locate the error line exactly matching the search text and the
+text is prefixed with the "\V" atom to make it "very nomagic". The "%s"
+conversion can be used to locate lines without a line number in the error
+output. Like the output of the "grep" shell command.
+When the pattern is present the line number will not be used.
+
+The "%o" conversion specifies the module name in quickfix entry. If present
+it will be used in quickfix error window instead of the filename. The module
+name is used only for displaying purposes, the file name is used when jumping
+to the file.
+
+Changing directory
+
+The following uppercase conversion characters specify the type of special
+format strings. At most one of them may be given as a prefix at the beginning
+of a single comma-separated format pattern.
+Some compilers produce messages that consist of directory names that have to
+be prepended to each file name read by %f (example: GNU make). The following
+codes can be used to scan these directory names; they will be stored in an
+internal directory stack. *E379*
+ %D "enter directory" format string; expects a following
+ %f that finds the directory name
+ %X "leave directory" format string; expects following %f
+
+When defining an "enter directory" or "leave directory" format, the "%D" or
+"%X" has to be given at the start of that substring. Vim tracks the directory
+changes and prepends the current directory to each erroneous file found with a
+relative path. See |quickfix-directory-stack| for details, tips and
+limitations.
+
+
+Multi-line messages *errorformat-multi-line*
+
+It is possible to read the output of programs that produce multi-line
+messages, i.e. error strings that consume more than one line. Possible
+prefixes are:
+ %E start of a multi-line error message
+ %W start of a multi-line warning message
+ %I start of a multi-line informational message
+ %N start of a multi-line note message
+ %A start of a multi-line message (unspecified type)
+ %> for next line start with current pattern again |efm-%>|
+ %C continuation of a multi-line message
+ %Z end of a multi-line message
+These can be used with '+' and '-', see |efm-ignore| below.
+
+Using "\n" in the pattern won't work to match multi-line messages.
+
+Example: Your compiler happens to write out errors in the following format
+(leading line numbers not being part of the actual output):
+
+ 1 Error 275 ~
+ 2 line 42 ~
+ 3 column 3 ~
+ 4 ' ' expected after '--' ~
+
+The appropriate error format string has to look like this: >
+ :set efm=%EError\ %n,%Cline\ %l,%Ccolumn\ %c,%Z%m
+
+And the |:clist| error message generated for this error is:
+
+ 1:42 col 3 error 275: ' ' expected after '--'
+
+Another example: Think of a Python interpreter that produces the following
+error message (line numbers are not part of the actual output):
+
+ 1 ==============================================================
+ 2 FAIL: testGetTypeIdCachesResult (dbfacadeTest.DjsDBFacadeTest)
+ 3 --------------------------------------------------------------
+ 4 Traceback (most recent call last):
+ 5 File "unittests/dbfacadeTest.py", line 89, in testFoo
+ 6 self.assertEquals(34, dtid)
+ 7 File "/usr/lib/python2.2/unittest.py", line 286, in
+ 8 failUnlessEqual
+ 9 raise self.failureException, \
+ 10 AssertionError: 34 != 33
+ 11
+ 12 --------------------------------------------------------------
+ 13 Ran 27 tests in 0.063s
+
+Say you want |:clist| write the relevant information of this message only,
+namely:
+ 5 unittests/dbfacadeTest.py:89: AssertionError: 34 != 33
+
+Then the error format string could be defined as follows: >
+ :set efm=%C\ %.%#,%A\ \ File\ \"%f\"\\,\ line\ %l%.%#,%Z%[%^\ ]%\\@=%m
+
+Note that the %C string is given before the %A here: since the expression
+' %.%#' (which stands for the regular expression ' .*') matches every line
+starting with a space, followed by any characters to the end of the line,
+it also hides line 7 which would trigger a separate error message otherwise.
+Error format strings are always parsed pattern by pattern until the first
+match occurs.
+ *efm-%>*
+The %> item can be used to avoid trying patterns that appear earlier in
+'errorformat'. This is useful for patterns that match just about anything.
+For example, if the error looks like this:
+
+ Error in line 123 of foo.c: ~
+ unknown variable "i" ~
+
+This can be found with: >
+ :set efm=xxx,%E%>Error in line %l of %f:,%Z%m
+Where "xxx" has a pattern that would also match the second line.
+
+Important: There is no memory of what part of the errorformat matched before;
+every line in the error file gets a complete new run through the error format
+lines. For example, if one has: >
+ setlocal efm=aa,bb,cc,dd,ee
+Where aa, bb, etc. are error format strings. Each line of the error file will
+be matched to the pattern aa, then bb, then cc, etc. Just because cc matched
+the previous error line does _not_ mean that dd will be tried first on the
+current line, even if cc and dd are multi-line errorformat strings.
+
+
+
+Separate file name *errorformat-separate-filename*
+
+These prefixes are useful if the file name is given once and multiple messages
+follow that refer to this file name.
+ %O single-line file message: overread the matched part
+ %P single-line file message: push file %f onto the stack
+ %Q single-line file message: pop the last file from stack
+
+Example: Given a compiler that produces the following error logfile (without
+leading line numbers):
+
+ 1 [a1.tt]
+ 2 (1,17) error: ';' missing
+ 3 (21,2) warning: variable 'z' not defined
+ 4 (67,3) error: end of file found before string ended
+ 5
+ 6 [a2.tt]
+ 7
+ 8 [a3.tt]
+ 9 NEW compiler v1.1
+ 10 (2,2) warning: variable 'x' not defined
+ 11 (67,3) warning: 's' already defined
+
+This logfile lists several messages for each file enclosed in [...] which are
+properly parsed by an error format like this: >
+ :set efm=%+P[%f],(%l\\,%c)%*[\ ]%t%*[^:]:\ %m,%-Q
+
+A call of |:clist| writes them accordingly with their correct filenames:
+
+ 2 a1.tt:1 col 17 error: ';' missing
+ 3 a1.tt:21 col 2 warning: variable 'z' not defined
+ 4 a1.tt:67 col 3 error: end of file found before string ended
+ 8 a3.tt:2 col 2 warning: variable 'x' not defined
+ 9 a3.tt:67 col 3 warning: 's' already defined
+
+Unlike the other prefixes that all match against whole lines, %P, %Q and %O
+can be used to match several patterns in the same line. Thus it is possible
+to parse even nested files like in the following line:
+ {"file1" {"file2" error1} error2 {"file3" error3 {"file4" error4 error5}}}
+The %O then parses over strings that do not contain any push/pop file name
+information. See |errorformat-LaTeX| for an extended example.
+
+
+Ignoring and using whole messages *efm-ignore*
+
+The codes '+' or '-' can be combined with the uppercase codes above; in that
+case they have to precede the letter, e.g. '%+A' or '%-G':
+ %- do not include the matching multi-line in any output
+ %+ include the whole matching line in the %m error string
+
+One prefix is only useful in combination with '+' or '-', namely %G. It parses
+over lines containing general information like compiler version strings or
+other headers that can be skipped.
+ %-G ignore this message
+ %+G general message
+
+
+Pattern matching
+
+The scanf()-like "%*[]" notation is supported for backward-compatibility
+with previous versions of Vim. However, it is also possible to specify
+(nearly) any Vim supported regular expression in format strings.
+Since meta characters of the regular expression language can be part of
+ordinary matching strings or file names (and therefore internally have to
+be escaped), meta symbols have to be written with leading '%':
+ %\ The single '\' character. Note that this has to be
+ escaped ("%\\") in ":set errorformat=" definitions.
+ %. The single '.' character.
+ %# The single '*'(!) character.
+ %^ The single '^' character. Note that this is not
+ useful, the pattern already matches start of line.
+ %$ The single '$' character. Note that this is not
+ useful, the pattern already matches end of line.
+ %[ The single '[' character for a [] character range.
+ %~ The single '~' character.
+When using character classes in expressions (see |/\i| for an overview),
+terms containing the "\+" quantifier can be written in the scanf() "%*"
+notation. Example: "%\\d%\\+" ("\d\+", "any number") is equivalent to "%*\\d".
+Important note: The \(...\) grouping of sub-matches can not be used in format
+specifications because it is reserved for internal conversions.
+
+
+Multiple entries in 'errorformat' *efm-entries*
+
+To be able to detect output from several compilers, several format patterns
+may be put in 'errorformat', separated by commas (note: blanks after the comma
+are ignored). The first pattern that has a complete match is used. If no
+match is found, matching parts from the last one will be used, although the
+file name is removed and the error message is set to the whole message. If
+there is a pattern that may match output from several compilers (but not in a
+right way), put it after one that is more restrictive.
+
+To include a comma in a pattern precede it with a backslash (you have to type
+two in a ":set" command). To include a backslash itself give two backslashes
+(you have to type four in a ":set" command). You also need to put a backslash
+before a space for ":set".
+
+
+Valid matches *quickfix-valid*
+
+If a line does not completely match one of the entries in 'errorformat', the
+whole line is put in the error message and the entry is marked "not valid"
+These lines are skipped with the ":cn" and ":cp" commands (unless there is
+no valid line at all). You can use ":cl!" to display all the error messages.
+
+If the error format does not contain a file name Vim cannot switch to the
+correct file. You will have to do this by hand.
+
+
+Examples
+
+The format of the file from the Amiga Aztec compiler is:
+
+ filename>linenumber:columnnumber:errortype:errornumber:errormessage
+
+ filename name of the file in which the error was detected
+ linenumber line number where the error was detected
+ columnnumber column number where the error was detected
+ errortype type of the error, normally a single 'E' or 'W'
+ errornumber number of the error (for lookup in the manual)
+ errormessage description of the error
+
+This can be matched with this 'errorformat' entry:
+ %f>%l:%c:%t:%n:%m
+
+Some examples for C compilers that produce single-line error outputs:
+%f:%l:\ %t%*[^0123456789]%n:\ %m for Manx/Aztec C error messages
+ (scanf() doesn't understand [0-9])
+%f\ %l\ %t%*[^0-9]%n:\ %m for SAS C
+\"%f\"\\,%*[^0-9]%l:\ %m for generic C compilers
+%f:%l:\ %m for GCC
+%f:%l:\ %m,%Dgmake[%*\\d]:\ Entering\ directory\ `%f',
+%Dgmake[%*\\d]:\ Leaving\ directory\ `%f'
+ for GCC with gmake (concat the lines!)
+%f(%l)\ :\ %*[^:]:\ %m old SCO C compiler (pre-OS5)
+%f(%l)\ :\ %t%*[^0-9]%n:\ %m idem, with error type and number
+%f:%l:\ %m,In\ file\ included\ from\ %f:%l:,\^I\^Ifrom\ %f:%l%m
+ for GCC, with some extras
+
+Extended examples for the handling of multi-line messages are given below,
+see |errorformat-Jikes| and |errorformat-LaTeX|.
+
+Note the backslash in front of a space and double quote. It is required for
+the :set command. There are two backslashes in front of a comma, one for the
+:set command and one to avoid recognizing the comma as a separator of error
+formats.
+
+
+Filtering messages
+
+If you have a compiler that produces error messages that do not fit in the
+format string, you could write a program that translates the error messages
+into this format. You can use this program with the ":make" command by
+changing the 'makeprg' option. For example: >
+ :set mp=make\ \\\|&\ error_filter
+The backslashes before the pipe character are required to avoid it to be
+recognized as a command separator. The backslash before each space is
+required for the set command.
+
+=============================================================================
+8. The directory stack *quickfix-directory-stack*
+
+Quickfix maintains a stack for saving all used directories parsed from the
+make output. For GNU-make this is rather simple, as it always prints the
+absolute path of all directories it enters and leaves. Regardless if this is
+done via a 'cd' command in the makefile or with the parameter "-C dir" (change
+to directory before reading the makefile). It may be useful to use the switch
+"-w" to force GNU-make to print out the working directory before and after
+processing.
+
+Maintaining the correct directory is more complicated if you don't use
+GNU-make. AIX-make for example doesn't print any information about its
+working directory. Then you need to enhance the makefile. In the makefile of
+LessTif there is a command which echoes "Making {target} in {dir}". The
+special problem here is that it doesn't print information on leaving the
+directory and that it doesn't print the absolute path.
+
+To solve the problem with relative paths and missing "leave directory"
+messages Vim uses the following algorithm:
+
+1) Check if the given directory is a subdirectory of the current directory.
+ If this is true, store it as the current directory.
+2) If it is not a subdir of the current directory, try if this is a
+ subdirectory of one of the upper directories.
+3) If the directory still isn't found, it is assumed to be a subdirectory
+ of Vim's current directory.
+
+Additionally it is checked for every file, if it really exists in the
+identified directory. If not, it is searched in all other directories of the
+directory stack (NOT the directory subtree!). If it is still not found, it is
+assumed that it is in Vim's current directory.
+
+There are limitations in this algorithm. These examples assume that make just
+prints information about entering a directory in the form "Making all in dir".
+
+1) Assume you have following directories and files:
+ ./dir1
+ ./dir1/file1.c
+ ./file1.c
+
+ If make processes the directory "./dir1" before the current directory and
+ there is an error in the file "./file1.c", you will end up with the file
+ "./dir1/file.c" loaded by Vim.
+
+ This can only be solved with a "leave directory" message.
+
+2) Assume you have following directories and files:
+ ./dir1
+ ./dir1/dir2
+ ./dir2
+
+ You get the following:
+
+ Make output Directory interpreted by Vim
+ ------------------------ ----------------------------
+ Making all in dir1 ./dir1
+ Making all in dir2 ./dir1/dir2
+ Making all in dir2 ./dir1/dir2
+
+ This can be solved by printing absolute directories in the "enter directory"
+ message or by printing "leave directory" messages.
+
+To avoid this problem, ensure to print absolute directory names and "leave
+directory" messages.
+
+Examples for Makefiles:
+
+Unix:
+ libs:
+ for dn in $(LIBDIRS); do \
+ (cd $$dn; echo "Entering dir '$$(pwd)'"; make); \
+ echo "Leaving dir"; \
+ done
+
+Add
+ %DEntering\ dir\ '%f',%XLeaving\ dir
+to your 'errorformat' to handle the above output.
+
+Note that Vim doesn't check if the directory name in a "leave directory"
+messages is the current directory. This is why you could just use the message
+"Leaving dir".
+
+=============================================================================
+9. Specific error file formats *errorformats*
+
+ *errorformat-Jikes*
+Jikes(TM), a source-to-bytecode Java compiler published by IBM Research,
+produces simple multi-line error messages.
+
+An 'errorformat' string matching the produced messages is shown below.
+The following lines can be placed in the user's |vimrc| to overwrite Vim's
+recognized default formats, or see |:set+=| how to install this format
+additionally to the default. >
+
+ :set efm=%A%f:%l:%c:%*\\d:%*\\d:,
+ \%C%*\\s%trror:%m,
+ \%+C%*[^:]%trror:%m,
+ \%C%*\\s%tarning:%m,
+ \%C%m
+<
+Jikes(TM) produces a single-line error message when invoked with the option
+"+E", and can be matched with the following: >
+
+ :setl efm=%f:%l:%v:%*\\d:%*\\d:%*\\s%m
+<
+ *errorformat-javac*
+This 'errorformat' has been reported to work well for javac, which outputs a
+line with "^" to indicate the column of the error: >
+ :setl efm=%A%f:%l:\ %m,%-Z%p^,%-C%.%#
+or: >
+ :setl efm=%A%f:%l:\ %m,%+Z%p^,%+C%.%#,%-G%.%#
+<
+Here is an alternative from Michael F. Lamb for Unix that filters the errors
+first: >
+ :setl errorformat=%Z%f:%l:\ %m,%A%p^,%-G%*[^sl]%.%#
+ :setl makeprg=javac\ %:S\ 2>&1\ \\\|\ vim-javac-filter
+
+You need to put the following in "vim-javac-filter" somewhere in your path
+(e.g., in ~/bin) and make it executable: >
+ #!/bin/sed -f
+ /\^$/s/\t/\ /g;/:[0-9]\+:/{h;d};/^[ \t]*\^/G;
+
+In English, that sed script:
+- Changes single tabs to single spaces and
+- Moves the line with the filename, line number, error message to just after
+ the pointer line. That way, the unused error text between doesn't break
+ vim's notion of a "multi-line message" and also doesn't force us to include
+ it as a "continuation of a multi-line message."
+
+ *errorformat-ant*
+For ant (http://jakarta.apache.org/) the above errorformat has to be modified
+to honour the leading [javac] in front of each javac output line: >
+ :set efm=%A\ %#[javac]\ %f:%l:\ %m,%-Z\ %#[javac]\ %p^,%-C%.%#
+
+The 'errorformat' can also be configured to handle ant together with either
+javac or jikes. If you're using jikes, you should tell ant to use jikes' +E
+command line switch which forces jikes to generate one-line error messages.
+This is what the second line (of a build.xml file) below does: >
+ <property name = "build.compiler" value = "jikes"/>
+ <property name = "build.compiler.emacs" value = "true"/>
+
+The 'errorformat' which handles ant with both javac and jikes is: >
+ :set efm=\ %#[javac]\ %#%f:%l:%c:%*\\d:%*\\d:\ %t%[%^:]%#:%m,
+ \%A\ %#[javac]\ %f:%l:\ %m,%-Z\ %#[javac]\ %p^,%-C%.%#
+<
+ *errorformat-jade*
+parsing jade (see http://www.jclark.com/) errors is simple: >
+ :set efm=jade:%f:%l:%c:%t:%m
+<
+ *errorformat-LaTeX*
+The following is an example how an 'errorformat' string can be specified
+for the (La)TeX typesetting system which displays error messages over
+multiple lines. The output of ":clist" and ":cc" etc. commands displays
+multi-lines in a single line, leading white space is removed.
+It should be easy to adopt the above LaTeX errorformat to any compiler output
+consisting of multi-line errors.
+
+The commands can be placed in a |vimrc| file or some other Vim script file,
+e.g. a script containing LaTeX related stuff which is loaded only when editing
+LaTeX sources.
+Make sure to copy all lines of the example (in the given order), afterwards
+remove the comment lines. For the '\' notation at the start of some lines see
+|line-continuation|.
+
+ First prepare 'makeprg' such that LaTeX will report multiple
+ errors; do not stop when the first error has occurred: >
+ :set makeprg=latex\ \\\\nonstopmode\ \\\\input\\{$*}
+<
+ Start of multi-line error messages: >
+ :set efm=%E!\ LaTeX\ %trror:\ %m,
+ \%E!\ %m,
+< Start of multi-line warning messages; the first two also
+ include the line number. Meaning of some regular expressions:
+ - "%.%#" (".*") matches a (possibly empty) string
+ - "%*\\d" ("\d\+") matches a number >
+ \%+WLaTeX\ %.%#Warning:\ %.%#line\ %l%.%#,
+ \%+W%.%#\ at\ lines\ %l--%*\\d,
+ \%WLaTeX\ %.%#Warning:\ %m,
+< Possible continuations of error/warning messages; the first
+ one also includes the line number: >
+ \%Cl.%l\ %m,
+ \%+C\ \ %m.,
+ \%+C%.%#-%.%#,
+ \%+C%.%#[]%.%#,
+ \%+C[]%.%#,
+ \%+C%.%#%[{}\\]%.%#,
+ \%+C<%.%#>%.%#,
+ \%C\ \ %m,
+< Lines that match the following patterns do not contain any
+ important information; do not include them in messages: >
+ \%-GSee\ the\ LaTeX%m,
+ \%-GType\ \ H\ <return>%m,
+ \%-G\ ...%.%#,
+ \%-G%.%#\ (C)\ %.%#,
+ \%-G(see\ the\ transcript%.%#),
+< Generally exclude any empty or whitespace-only line from
+ being displayed: >
+ \%-G\\s%#,
+< The LaTeX output log does not specify the names of erroneous
+ source files per line; rather they are given globally,
+ enclosed in parentheses.
+ The following patterns try to match these names and store
+ them in an internal stack. The patterns possibly scan over
+ the same input line (one after another), the trailing "%r"
+ conversion indicates the "rest" of the line that will be
+ parsed in the next go until the end of line is reached.
+
+ Overread a file name enclosed in '('...')'; do not push it
+ on a stack since the file apparently does not contain any
+ error: >
+ \%+O(%f)%r,
+< Push a file name onto the stack. The name is given after '(': >
+ \%+P(%f%r,
+ \%+P\ %\\=(%f%r,
+ \%+P%*[^()](%f%r,
+ \%+P[%\\d%[^()]%#(%f%r,
+< Pop the last stored file name when a ')' is scanned: >
+ \%+Q)%r,
+ \%+Q%*[^()])%r,
+ \%+Q[%\\d%*[^()])%r
+
+Note that in some cases file names in the LaTeX output log cannot be parsed
+properly. The parser might have been messed up by unbalanced parentheses
+then. The above example tries to catch the most relevant cases only.
+You can customize the given setting to suit your own purposes, for example,
+all the annoying "Overfull ..." warnings could be excluded from being
+recognized as an error.
+Alternatively to filtering the LaTeX compiler output, it is also possible
+to directly read the *.log file that is produced by the [La]TeX compiler.
+This contains even more useful information about possible error causes.
+However, to properly parse such a complex file, an external filter should
+be used. See the description further above how to make such a filter known
+by Vim.
+
+ *errorformat-Perl*
+In $VIMRUNTIME/tools you can find the efm_perl.pl script, which filters Perl
+error messages into a format that quickfix mode will understand. See the
+start of the file about how to use it. (This script is deprecated, see
+|compiler-perl|.)
+
+=============================================================================
+10. Customizing the quickfix window *quickfix-window-function*
+
+The default format for the lines displayed in the quickfix window and location
+list window is:
+
+ <filename>|<lnum> col <col>|<text>
+
+The values displayed in each line correspond to the "bufnr", "lnum", "col" and
+"text" fields returned by the |getqflist()| function.
+
+For some quickfix/location lists, the displayed text needs to be customized.
+For example, if only the filename is present for a quickfix entry, then the
+two "|" field separator characters after the filename are not needed. Another
+use case is to customize the path displayed for a filename. By default, the
+complete path (which may be too long) is displayed for files which are not
+under the current directory tree. The file path may need to be simplified to a
+common parent directory.
+
+The displayed text can be customized by setting the 'quickfixtextfunc' option
+to a Vim function. This function will be called with a dict argument and
+should return a List of strings to be displayed in the quickfix or location
+list window. The dict argument will have the following fields:
+
+ quickfix set to 1 when called for a quickfix list and 0 when called for
+ a location list.
+ winid for a location list, set to the id of the window with the
+ location list. For a quickfix list, set to 0. Can be used in
+ getloclist() to get the location list entry.
+ id quickfix or location list identifier
+ start_idx index of the first entry for which text should be returned
+ end_idx index of the last entry for which text should be returned
+
+The function should return a single line of text to display in the quickfix
+window for each entry from start_idx to end_idx. The function can obtain
+information about the entries using the |getqflist()| function and specifying
+the quickfix list identifier "id". For a location list, getloclist() function
+can be used with the "winid" argument. If an empty list is returned, then the
+default format is used to display all the entries. If an item in the returned
+list is an empty string, then the default format is used to display the
+corresponding entry.
+
+If a quickfix or location list specific customization is needed, then the
+'quickfixtextfunc' attribute of the list can be set using the |setqflist()| or
+|setloclist()| function. This overrides the global 'quickfixtextfunc' option.
+
+The example below displays the list of old files (|v:oldfiles|) in a quickfix
+window. As there is no line, column number and error text information
+associated with each entry, the 'quickfixtextfunc' function returns only the
+filename.
+Example: >
+ " create a quickfix list from v:oldfiles
+ call setqflist([], ' ', {'lines' : v:oldfiles, 'efm' : '%f',
+ \ 'quickfixtextfunc' : 'QfOldFiles'})
+ func QfOldFiles(info)
+ " get information about a range of quickfix entries
+ let items = getqflist({'id' : a:info.id, 'items' : 1}).items
+ let l = []
+ for idx in range(a:info.start_idx - 1, a:info.end_idx - 1)
+ " use the simplified file name
+ call add(l, fnamemodify(bufname(items[idx].bufnr), ':p:.'))
+ endfor
+ return l
+ endfunc
+<
+
+ vim:tw=78:ts=8:noet:ft=help:norl: