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tm_source_file.c
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tm_source_file.c
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/*
*
* Copyright (c) 2001-2002, Biswapesh Chattopadhyay
*
* This source code is released for free distribution under the terms of the
* GNU General Public License.
*
*/
/**
* @file tm_source_file.h
The TMSourceFile structure and associated functions are used to maintain
tags for individual files.
*/
#include <stdio.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include "general.h"
#include "entry.h"
#include "parse.h"
#include "read.h"
#define LIBCTAGS_DEFINED
#include "tm_work_object.h"
#include "tm_source_file.h"
#include "tm_tag.h"
guint source_file_class_id = 0;
static TMSourceFile *current_source_file = NULL;
gboolean tm_source_file_init(TMSourceFile *source_file, const char *file_name
, gboolean update, const char* name)
{
if (0 == source_file_class_id)
source_file_class_id = tm_work_object_register(tm_source_file_free
, tm_source_file_update, NULL);
#ifdef TM_DEBUG
g_message("Source File init: %s", file_name);
#endif
if (FALSE == tm_work_object_init(&(source_file->work_object),
source_file_class_id, file_name, FALSE))
return FALSE;
source_file->inactive = FALSE;
if (NULL == LanguageTable)
{
initializeParsing();
installLanguageMapDefaults();
if (NULL == TagEntryFunction)
TagEntryFunction = tm_source_file_tags;
if (NULL == TagEntrySetArglistFunction)
TagEntrySetArglistFunction = tm_source_file_set_tag_arglist;
}
if (name == NULL)
source_file->lang = LANG_AUTO;
else
source_file->lang = getNamedLanguage(name);
if (update)
tm_source_file_update(TM_WORK_OBJECT(source_file), TRUE, FALSE, FALSE);
return TRUE;
}
TMWorkObject *tm_source_file_new(const char *file_name, gboolean update, const char *name)
{
TMSourceFile *source_file = g_new(TMSourceFile, 1);
if (TRUE != tm_source_file_init(source_file, file_name, update, name))
{
g_free(source_file);
return NULL;
}
return (TMWorkObject *) source_file;
}
void tm_source_file_destroy(TMSourceFile *source_file)
{
#ifdef TM_DEBUG
g_message("Destroying source file: %s", source_file->work_object.file_name);
#endif
if (NULL != TM_WORK_OBJECT(source_file)->tags_array)
{
tm_tags_array_free(TM_WORK_OBJECT(source_file)->tags_array, TRUE);
TM_WORK_OBJECT(source_file)->tags_array = NULL;
}
tm_work_object_destroy(&(source_file->work_object));
}
void tm_source_file_free(gpointer source_file)
{
if (NULL != source_file)
{
tm_source_file_destroy(source_file);
g_free(source_file);
}
}
gboolean tm_source_file_parse(TMSourceFile *source_file)
{
const char *file_name;
gboolean status = TRUE;
int passCount = 0;
if ((NULL == source_file) || (NULL == source_file->work_object.file_name))
{
g_warning("Attempt to parse NULL file");
return FALSE;
}
file_name = source_file->work_object.file_name;
if (NULL == LanguageTable)
{
initializeParsing();
installLanguageMapDefaults();
if (NULL == TagEntryFunction)
TagEntryFunction = tm_source_file_tags;
if (NULL == TagEntrySetArglistFunction)
TagEntrySetArglistFunction = tm_source_file_set_tag_arglist;
}
current_source_file = source_file;
if (LANG_AUTO == source_file->lang)
source_file->lang = getFileLanguage (file_name);
if (source_file->lang < 0 || ! LanguageTable [source_file->lang]->enabled)
return status;
while ((TRUE == status) && (passCount < 3))
{
if (source_file->work_object.tags_array)
tm_tags_array_free(source_file->work_object.tags_array, FALSE);
if (fileOpen (file_name, source_file->lang))
{
if (LanguageTable [source_file->lang]->parser != NULL)
{
LanguageTable [source_file->lang]->parser ();
fileClose ();
break;
}
else if (LanguageTable [source_file->lang]->parser2 != NULL)
status = LanguageTable [source_file->lang]->parser2 (passCount);
fileClose ();
}
else
{
g_warning("%s: Unable to open %s", G_STRFUNC, file_name);
return FALSE;
}
++ passCount;
}
return status;
}
gboolean tm_source_file_buffer_parse(TMSourceFile *source_file, guchar* text_buf, gint buf_size)
{
const char *file_name;
gboolean status = TRUE;
if ((NULL == source_file) || (NULL == source_file->work_object.file_name))
{
g_warning("Attempt to parse NULL file");
return FALSE;
}
if ((NULL == text_buf) || (0 == buf_size))
{
g_warning("Attempt to parse a NULL text buffer");
}
file_name = source_file->work_object.file_name;
if (NULL == LanguageTable)
{
initializeParsing();
installLanguageMapDefaults();
if (NULL == TagEntryFunction)
TagEntryFunction = tm_source_file_tags;
if (NULL == TagEntrySetArglistFunction)
TagEntrySetArglistFunction = tm_source_file_set_tag_arglist;
}
current_source_file = source_file;
if (LANG_AUTO == source_file->lang)
source_file->lang = getFileLanguage (file_name);
if (source_file->lang == LANG_IGNORE)
{
#ifdef TM_DEBUG
g_warning("ignoring %s (unknown language)\n", file_name);
#endif
}
else if (! LanguageTable [source_file->lang]->enabled)
{
#ifdef TM_DEBUG
g_warning("ignoring %s (language disabled)\n", file_name);
#endif
}
else
{
int passCount = 0;
while ((TRUE == status) && (passCount < 3))
{
if (source_file->work_object.tags_array)
tm_tags_array_free(source_file->work_object.tags_array, FALSE);
if (bufferOpen (text_buf, buf_size, file_name, source_file->lang))
{
if (LanguageTable [source_file->lang]->parser != NULL)
{
LanguageTable [source_file->lang]->parser ();
bufferClose ();
break;
}
else if (LanguageTable [source_file->lang]->parser2 != NULL)
status = LanguageTable [source_file->lang]->parser2 (passCount);
bufferClose ();
}
else
{
g_warning("Unable to open %s", file_name);
return FALSE;
}
++ passCount;
}
return TRUE;
}
return status;
}
void tm_source_file_set_tag_arglist(const char *tag_name, const char *arglist)
{
int count;
TMTag **tags, *tag;
if (NULL == arglist ||
NULL == tag_name ||
NULL == current_source_file ||
NULL == current_source_file->work_object.tags_array)
{
return;
}
tags = tm_tags_find(current_source_file->work_object.tags_array, tag_name, FALSE, &count);
if (tags != NULL && count == 1)
{
tag = tags[0];
g_free(tag->atts.entry.arglist);
tag->atts.entry.arglist = g_strdup(arglist);
}
}
int tm_source_file_tags(const tagEntryInfo *tag)
{
if (NULL == current_source_file)
return 0;
if (NULL == current_source_file->work_object.tags_array)
current_source_file->work_object.tags_array = g_ptr_array_new();
g_ptr_array_add(current_source_file->work_object.tags_array,
tm_tag_new(current_source_file, tag));
return TRUE;
}
gboolean tm_source_file_update(TMWorkObject *source_file, gboolean force
, gboolean __unused__ recurse, gboolean update_parent)
{
if (force)
{
tm_source_file_parse(TM_SOURCE_FILE(source_file));
tm_tags_sort(source_file->tags_array, NULL, FALSE);
/* source_file->analyze_time = tm_get_file_timestamp(source_file->file_name); */
if ((source_file->parent) && update_parent)
{
tm_work_object_update(source_file->parent, TRUE, FALSE, TRUE);
}
return TRUE;
}
else {
#ifdef TM_DEBUG
g_message ("no parsing of %s has been done", source_file->file_name);
#endif
return FALSE;
}
}
gboolean tm_source_file_buffer_update(TMWorkObject *source_file, guchar* text_buf,
gint buf_size, gboolean update_parent)
{
#ifdef TM_DEBUG
g_message("Buffer updating based on source file %s", source_file->file_name);
#endif
tm_source_file_buffer_parse (TM_SOURCE_FILE(source_file), text_buf, buf_size);
tm_tags_sort(source_file->tags_array, NULL, FALSE);
/* source_file->analyze_time = time(NULL); */
if ((source_file->parent) && update_parent)
{
#ifdef TM_DEBUG
g_message("Updating parent [project] from buffer..");
#endif
tm_work_object_update(source_file->parent, TRUE, FALSE, TRUE);
}
#ifdef TM_DEBUG
else
g_message("Skipping parent update because parent is %s and update_parent is %s"
, source_file->parent?"NOT NULL":"NULL", update_parent?"TRUE":"FALSE");
#endif
return TRUE;
}
gboolean tm_source_file_write(TMWorkObject *source_file, FILE *fp, guint attrs)
{
TMTag *tag;
guint i;
if (NULL != source_file)
{
if (NULL != (tag = tm_tag_new(TM_SOURCE_FILE(source_file), NULL)))
{
tm_tag_write(tag, fp, tm_tag_attr_max_t);
tm_tag_free(tag);
if (NULL != source_file->tags_array)
{
for (i=0; i < source_file->tags_array->len; ++i)
{
tag = TM_TAG(source_file->tags_array->pdata[i]);
if (TRUE != tm_tag_write(tag, fp, attrs))
return FALSE;
}
}
}
}
return TRUE;
}
const gchar *tm_source_file_get_lang_name(gint lang)
{
if (NULL == LanguageTable)
{
initializeParsing();
installLanguageMapDefaults();
if (NULL == TagEntryFunction)
TagEntryFunction = tm_source_file_tags;
if (NULL == TagEntrySetArglistFunction)
TagEntrySetArglistFunction = tm_source_file_set_tag_arglist;
}
return getLanguageName(lang);
}
gint tm_source_file_get_named_lang(const gchar *name)
{
if (NULL == LanguageTable)
{
initializeParsing();
installLanguageMapDefaults();
if (NULL == TagEntryFunction)
TagEntryFunction = tm_source_file_tags;
if (NULL == TagEntrySetArglistFunction)
TagEntrySetArglistFunction = tm_source_file_set_tag_arglist;
}
return getNamedLanguage(name);
}