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/* SPDX-License-Identifier: GPL-2.0-or-later
* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
/** \file
* \ingroup sptext
*/
#include <string.h>
#include "MEM_guardedalloc.h"
#include "BLI_blenlib.h"
#include "BLI_string_utils.h"
#include "DNA_space_types.h"
#include "DNA_text_types.h"
#include "ED_text.h"
#include "text_format.h"
/****************** flatten string **********************/
static void flatten_string_append(FlattenString *fs, const char *c, int accum, int len)
{
int i;
if (fs->pos + len > fs->len) {
char *nbuf;
int *naccum;
fs->len *= 2;
nbuf = MEM_callocN(sizeof(*fs->buf) * fs->len, "fs->buf");
naccum = MEM_callocN(sizeof(*fs->accum) * fs->len, "fs->accum");
memcpy(nbuf, fs->buf, fs->pos * sizeof(*fs->buf));
memcpy(naccum, fs->accum, fs->pos * sizeof(*fs->accum));
if (fs->buf != fs->fixedbuf) {
MEM_freeN(fs->buf);
MEM_freeN(fs->accum);
}
fs->buf = nbuf;
fs->accum = naccum;
}
for (i = 0; i < len; i++) {
fs->buf[fs->pos + i] = c[i];
fs->accum[fs->pos + i] = accum;
}
fs->pos += len;
}
int flatten_string(const SpaceText *st, FlattenString *fs, const char *in)
{
int r, i, total = 0;
memset(fs, 0, sizeof(FlattenString));
fs->buf = fs->fixedbuf;
fs->accum = fs->fixedaccum;
fs->len = sizeof(fs->fixedbuf);
for (r = 0, i = 0; *in; r++) {
if (*in == '\t') {
i = st->tabnumber - (total % st->tabnumber);
total += i;
while (i--) {
flatten_string_append(fs, " ", r, 1);
}
in++;
}
else {
size_t len = BLI_str_utf8_size_safe(in);
flatten_string_append(fs, in, r, len);
in += len;
total++;
}
}
flatten_string_append(fs, "\0", r, 1);
return total;
}
void flatten_string_free(FlattenString *fs)
{
if (fs->buf != fs->fixedbuf) {
MEM_freeN(fs->buf);
}
if (fs->accum != fs->fixedaccum) {
MEM_freeN(fs->accum);
}
}
int flatten_string_strlen(FlattenString *fs, const char *str)
{
const int len = (fs->pos - (int)(str - fs->buf)) - 1;
BLI_assert(strlen(str) == len);
return len;
}
int text_check_format_len(TextLine *line, uint len)
{
if (line->format) {
if (strlen(line->format) < len) {
MEM_freeN(line->format);
line->format = MEM_mallocN(len + 2, "SyntaxFormat");
if (!line->format) {
return 0;
}
}
}
else {
line->format = MEM_mallocN(len + 2, "SyntaxFormat");
if (!line->format) {
return 0;
}
}
return 1;
}
void text_format_fill(const char **str_p, char **fmt_p, const char type, const int len)
{
const char *str = *str_p;
char *fmt = *fmt_p;
int i = 0;
while (i < len) {
const int size = BLI_str_utf8_size_safe(str);
*fmt++ = type;
str += size;
i += 1;
}
str--;
fmt--;
BLI_assert(*str != '\0');
*str_p = str;
*fmt_p = fmt;
}
void text_format_fill_ascii(const char **str_p, char **fmt_p, const char type, const int len)
{
const char *str = *str_p;
char *fmt = *fmt_p;
memset(fmt, type, len);
str += len - 1;
fmt += len - 1;
BLI_assert(*str != '\0');
*str_p = str;
*fmt_p = fmt;
}
/* *** Registration *** */
static ListBase tft_lb = {NULL, NULL};
void ED_text_format_register(TextFormatType *tft)
{
BLI_addtail(&tft_lb, tft);
}
TextFormatType *ED_text_format_get(Text *text)
{
TextFormatType *tft;
if (text) {
const char *text_ext = strchr(text->id.name + 2, '.');
if (text_ext) {
text_ext++; /* skip the '.' */
/* Check all text formats in the static list */
for (tft = tft_lb.first; tft; tft = tft->next) {
/* All formats should have an ext, but just in case */
const char **ext;
for (ext = tft->ext; *ext; ext++) {
/* If extension matches text name, return the matching tft */
if (BLI_strcasecmp(text_ext, *ext) == 0) {
return tft;
}
}
}
}
/* If we make it here we never found an extension that worked - return
* the "default" text format */
return tft_lb.first;
}
/* Return the "default" text format */
return tft_lb.first;
}
bool ED_text_is_syntax_highlight_supported(Text *text)
{
if (text == NULL) {
return false;
}
TextFormatType *tft;
const char *text_ext = BLI_path_extension(text->id.name + 2);
if (text_ext == NULL) {
/* Extensionless data-blocks are considered highlightable as Python. */
return true;
}
text_ext++; /* skip the '.' */
if (BLI_string_is_decimal(text_ext)) {
/* "Text.001" is treated as extensionless, and thus highlightable. */
return true;
}
/* Check all text formats in the static list */
for (tft = tft_lb.first; tft; tft = tft->next) {
/* All formats should have an ext, but just in case */
const char **ext;
for (ext = tft->ext; *ext; ext++) {
/* If extension matches text name, return the matching tft */
if (BLI_strcasecmp(text_ext, *ext) == 0) {
return true;
}
}
}
/* The filename has a non-numerical extension that we could not highlight. */
return false;
}
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