From ffccd5b2b05243e7976db80f90f453dccfae9886 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 15 Apr 2024 22:22:03 +0200 Subject: Adding upstream version 3:4.8.30. Signed-off-by: Daniel Baumann --- src/editor/editbuffer.h | 117 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 src/editor/editbuffer.h (limited to 'src/editor/editbuffer.h') diff --git a/src/editor/editbuffer.h b/src/editor/editbuffer.h new file mode 100644 index 0000000..def17ee --- /dev/null +++ b/src/editor/editbuffer.h @@ -0,0 +1,117 @@ +/** \file + * \brief Header: text keep buffer for WEdit + */ + +#ifndef MC__EDIT_BUFFER_H +#define MC__EDIT_BUFFER_H + +/*** typedefs(not structures) and defined constants **********************************************/ + +/*** enums ***************************************************************************************/ + +/*** structures declarations (and typedefs of structures)*****************************************/ + +typedef struct edit_buffer_struct +{ + off_t curs1; /* position of the cursor from the beginning of the file. */ + off_t curs2; /* position from the end of the file */ + GPtrArray *b1; /* all data up to curs1 */ + GPtrArray *b2; /* all data from end of file down to curs2 */ + off_t size; /* file size */ + long lines; /* total lines in the file */ + long curs_line; /* line number of the cursor. */ +} edit_buffer_t; + +typedef struct edit_buffer_read_file_status_msg_struct +{ + simple_status_msg_t status_msg; /* base class */ + + gboolean first; + edit_buffer_t *buf; + off_t loaded; +} edit_buffer_read_file_status_msg_t; + +/*** global variables defined in .c file *********************************************************/ + +/*** declarations of public functions ************************************************************/ + +void edit_buffer_init (edit_buffer_t * buf, off_t size); +void edit_buffer_clean (edit_buffer_t * buf); + +int edit_buffer_get_byte (const edit_buffer_t * buf, off_t byte_index); +#ifdef HAVE_CHARSET +int edit_buffer_get_utf (const edit_buffer_t * buf, off_t byte_index, int *char_length); +int edit_buffer_get_prev_utf (const edit_buffer_t * buf, off_t byte_index, int *char_length); +#endif +long edit_buffer_count_lines (const edit_buffer_t * buf, off_t first, off_t last); +off_t edit_buffer_get_bol (const edit_buffer_t * buf, off_t current); +off_t edit_buffer_get_eol (const edit_buffer_t * buf, off_t current); +GString *edit_buffer_get_word_from_pos (const edit_buffer_t * buf, off_t start_pos, off_t * start, + gsize * cut); +gboolean edit_buffer_find_word_start (const edit_buffer_t * buf, off_t * word_start, + gsize * word_len); + +void edit_buffer_insert (edit_buffer_t * buf, int c); +void edit_buffer_insert_ahead (edit_buffer_t * buf, int c); +int edit_buffer_delete (edit_buffer_t * buf); +int edit_buffer_backspace (edit_buffer_t * buf); + +off_t edit_buffer_get_forward_offset (const edit_buffer_t * buf, off_t current, long lines, + off_t upto); +off_t edit_buffer_get_backward_offset (const edit_buffer_t * buf, off_t current, long lines); + +off_t edit_buffer_read_file (edit_buffer_t * buf, int fd, off_t size, + edit_buffer_read_file_status_msg_t * sm, gboolean * aborted); +off_t edit_buffer_write_file (edit_buffer_t * buf, int fd); + +int edit_buffer_calc_percent (const edit_buffer_t * buf, off_t offset); + +/*** inline functions ****************************************************************************/ + +static inline int +edit_buffer_get_current_byte (const edit_buffer_t * buf) +{ + return edit_buffer_get_byte (buf, buf->curs1); +} + +/* --------------------------------------------------------------------------------------------- */ + +static inline int +edit_buffer_get_previous_byte (const edit_buffer_t * buf) +{ + return edit_buffer_get_byte (buf, buf->curs1 - 1); +} + +/* --------------------------------------------------------------------------------------------- */ +/** + * Get "begin-of-line" offset of current line + * + * @param buf editor buffer + * + * @return index of first char of current line + */ + +static inline off_t +edit_buffer_get_current_bol (const edit_buffer_t * buf) +{ + return edit_buffer_get_bol (buf, buf->curs1); +} + +/* --------------------------------------------------------------------------------------------- */ +/** + * Get "end-of-line" offset of current line + * + * @param buf editor buffer + * + * @return index of first char of current line + 1 + */ + +static inline off_t +edit_buffer_get_current_eol (const edit_buffer_t * buf) +{ + return edit_buffer_get_eol (buf, buf->curs1); +} + +/* --------------------------------------------------------------------------------------------- */ + +#endif /* MC__EDIT_BUFFER_H */ -- cgit v1.2.3