1 files changed, 176 insertions, 0 deletions
diff --git a/intl/icu/source/tools/toolutil/pkg_icu.cpp b/intl/icu/source/tools/toolutil/pkg_icu.cpp
new file mode 100644
index 0000000000..d9c6717ecd
--- /dev/null
+++ b/intl/icu/source/tools/toolutil/pkg_icu.cpp
@@ -0,0 +1,176 @@
+// © 2016 and later: Unicode, Inc. and others.
+// License & terms of use: http://www.unicode.org/copyright.html
+/******************************************************************************
+ *   Copyright (C) 2008-2015, International Business Machines
+ *   Corporation and others.  All Rights Reserved.
+ *******************************************************************************
+ */
+#include "unicode/utypes.h"
+#include "unicode/localpointer.h"
+#include "unicode/putil.h"
+#include "cstring.h"
+#include "toolutil.h"
+#include "uoptions.h"
+#include "uparse.h"
+#include "package.h"
+#include "pkg_icu.h"
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+// read a file list -------------------------------------------------------- ***
+
+U_NAMESPACE_USE
+
+static const struct {
+    const char *suffix;
+    int32_t length;
+} listFileSuffixes[]={
+    { ".txt", 4 },
+    { ".lst", 4 },
+    { ".tmp", 4 }
+};
+
+/* check for multiple text file suffixes to see if this list name is a text file name */
+static UBool
+isListTextFile(const char *listname) {
+    const char *listNameEnd=strchr(listname, 0);
+    const char *suffix;
+    int32_t i, length;
+    for(i=0; i<UPRV_LENGTHOF(listFileSuffixes); ++i) {
+        suffix=listFileSuffixes[i].suffix;
+        length=listFileSuffixes[i].length;
+        if((listNameEnd-listname)>length && 0==memcmp(listNameEnd-length, suffix, length)) {
+            return true;
+        }
+    }
+    return false;
+}
+
+/*
+ * Read a file list.
+ * If the listname ends with ".txt", then read the list file
+ * (in the system/ invariant charset).
+ * If the listname ends with ".dat", then read the ICU .dat package file.
+ * Otherwise, read the file itself as a single-item list.
+ */
+U_CAPI Package * U_EXPORT2
+readList(const char *filesPath, const char *listname, UBool readContents, Package *listPkgIn) {
+    Package *listPkg = listPkgIn;
+    FILE *file;
+    const char *listNameEnd;
+
+    if(listname==nullptr || listname[0]==0) {
+        fprintf(stderr, "missing list file\n");
+        return nullptr;
+    }
+
+    if (listPkg == nullptr) {
+        listPkg=new Package();
+        if(listPkg==nullptr) {
+            fprintf(stderr, "icupkg: not enough memory\n");
+            exit(U_MEMORY_ALLOCATION_ERROR);
+        }
+    }
+
+    listNameEnd=strchr(listname, 0);
+    if(isListTextFile(listname)) {
+        // read the list file
+        char line[1024];
+        char *end;
+        const char *start;
+
+        file=fopen(listname, "r");
+        if(file==nullptr) {
+            fprintf(stderr, "icupkg: unable to open list file \"%s\"\n", listname);
+            delete listPkg;
+            exit(U_FILE_ACCESS_ERROR);
+        }
+
+        while(fgets(line, sizeof(line), file)) {
+            // remove comments
+            end=strchr(line, '#');
+            if(end!=nullptr) {
+                *end=0;
+            } else {
+                // remove trailing CR LF
+                end=strchr(line, 0);
+                while(line<end && (*(end-1)=='\r' || *(end-1)=='\n')) {
+                    *--end=0;
+                }
+            }
+
+            // check first non-whitespace character and
+            // skip empty lines and
+            // skip lines starting with reserved characters
+            start=u_skipWhitespace(line);
+            if(*start==0 || nullptr!=strchr(U_PKG_RESERVED_CHARS, *start)) {
+                continue;
+            }
+
+            // take whitespace-separated items from the line
+            for(;;) {
+                // find whitespace after the item or the end of the line
+                for(end=(char *)start; *end!=0 && *end!=' ' && *end!='\t'; ++end) {}
+                if(*end==0) {
+                    // this item is the last one on the line
+                    end=nullptr;
+                } else {
+                    // the item is terminated by whitespace, terminate it with NUL
+                    *end=0;
+                }
+                if(readContents) {
+                    listPkg->addFile(filesPath, start);
+                } else {
+                    listPkg->addItem(start);
+                }
+
+                // find the start of the next item or exit the loop
+                if(end==nullptr || *(start=u_skipWhitespace(end+1))==0) {
+                    break;
+                }
+            }
+        }
+        fclose(file);
+    } else if((listNameEnd-listname)>4 && 0==memcmp(listNameEnd-4, ".dat", 4)) {
+        // read the ICU .dat package
+        // Accept a .dat file whose name differs from the ToC prefixes.
+        listPkg->setAutoPrefix();
+        listPkg->readPackage(listname);
+    } else {
+        // list the single file itself
+        if(readContents) {
+            listPkg->addFile(filesPath, listname);
+        } else {
+            listPkg->addItem(listname);
+        }
+    }
+
+    return listPkg;
+}
+
+U_CAPI int U_EXPORT2
+writePackageDatFile(const char *outFilename, const char *outComment, const char *sourcePath, const char *addList, Package *pkg, char outType) {
+    LocalPointer<Package> ownedPkg;
+    LocalPointer<Package> addListPkg;
+
+    if (pkg == nullptr) {
+        ownedPkg.adoptInstead(new Package);
+        if(ownedPkg.isNull()) {
+            fprintf(stderr, "icupkg: not enough memory\n");
+            return U_MEMORY_ALLOCATION_ERROR;
+        }
+        pkg = ownedPkg.getAlias();
+
+        addListPkg.adoptInstead(readList(sourcePath, addList, true, nullptr));
+        if(addListPkg.isValid()) {
+            pkg->addItems(*addListPkg);
+        } else {
+            return U_ILLEGAL_ARGUMENT_ERROR;
+        }
+    }
+
+    pkg->writePackage(outFilename, outType, outComment);
+    return 0;
+}