149 lines
4.2 KiB
C
149 lines
4.2 KiB
C
/*
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* Convert a CSS style sheet to C buffer so that it can be statically
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* linked with qemacs
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*
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* Copyright (c) 2002 Fabrice Bellard.
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* Copyright (c) 2007-2023 Charlie Gordon.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <ctype.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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static int peekc(FILE *f)
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{
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int c = getc(f);
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if (c != EOF)
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ungetc(c, f);
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return c;
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}
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static int compat_char(int c1, int c2)
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{
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if ((isalnum(c1) || c1 == '_' || c1 == '$')
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&& (isalnum(c2) || c2 == '_' || c2 == '$'))
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return 0;
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if ((c1 == c2 && strchr("+-<>&|=", c1))
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|| (c2 == '=' && strchr("<>!+-*/&|^%", c1))
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|| (c1 == '-' && c2 == '>')
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|| (c1 == '/' && c2 == '/')
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|| (c1 == '/' && c2 == '*')
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|| (c1 == '*' && c2 == '/')
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|| (c1 == '<' && c2 == '/')
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|| (c1 == '.' && isdigit(c2))
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|| (isdigit(c1) && c2 == '.'))
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return 0;
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return 1;
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}
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int main(int argc, char **argv)
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{
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int c, n, last_c, got_space, in_string;
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if (argc < 2) {
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fprintf(stderr, "usage: csstoqe array_name\n");
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exit(1);
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}
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printf("/* Automatically generated file - do not edit */\n"
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"\n"
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"#include \"css.h\"\n"
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"\n");
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printf("const char %s[] = {\n", argv[1]);
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n = 0;
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got_space = 0;
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last_c = 0;
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in_string = 0;
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for (;;) {
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c = getchar();
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if (c == EOF)
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break;
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if (!in_string) {
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if (c == ' ' || c == '\t' || c == '\n') {
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got_space = 1;
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continue;
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}
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/* comments */
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if (c == '/' && peekc(stdin) == '/') {
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/* C++ like comment */
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for (;;) {
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c = getchar();
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if (c == EOF)
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goto the_end;
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if (c == '\n')
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goto end_comment;
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}
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}
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if (c == '/' && peekc(stdin) == '*') {
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/* C like comment */
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getchar();
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for (;;) {
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c = getchar();
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if (c == EOF)
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goto the_end;
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while (c == '*') {
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c = getchar();
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if (c == EOF)
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goto the_end;
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if (c == '/')
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goto end_comment;
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}
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}
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end_comment:
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got_space = 1;
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continue;
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}
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}
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if (n == 0) {
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printf(" \"");
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}
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/* add separator if needed */
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if (!in_string && got_space) {
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if (!compat_char(last_c, c)) {
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putchar(' ');
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n++;
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}
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}
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if (c == '\"' || c == '\'' || c == '\\') {
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putchar('\\');
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n++;
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}
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putchar(c);
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if (c == '\"' || c == '\'') {
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if (in_string == c || in_string == 0)
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in_string ^= c;
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}
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last_c = c;
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got_space = 0;
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if (++n >= 64) {
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printf("\"\n");
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n = 0;
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}
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}
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the_end:
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if (n > 0)
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printf("\"\n");
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printf("};\n\n");
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return 0;
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}
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