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// SPDX-License-Identifier: GPL-2.0-or-later
#include <stdbool.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <unistd.h>
enum file_type {
PLAIN,
MARKDOWN,
HTML,
CODE
};
void output_xml_escaped_char(char c, FILE *out) {
switch(c) {
case '&':
fputs("&", out);
break;
case '<':
fputs("<", out);
break;
case '>':
fputs(">", out);
break;
case '\'':
fputs("'", out);
break;
case '\"':
fputs(""", out);
break;
default:
fputc(c, out);
break;
}
}
int main(int argc, char *argv[]) {
bool about_filter;
char *file;
if(argc == 2) {
about_filter = 0;
file = argv[1];
} else if(argc == 3 && strcmp(argv[1], "--about") == 0) {
about_filter = 1;
file = argv[2];
} else {
fprintf(stderr, "Usage: %s [--about] BASENAME\n", argv[0]);
return 1;
}
char *extension = rindex(file, '.');
enum file_type ft = PLAIN;
if(extension != NULL) {
extension++;
if(about_filter && (strcmp(extension, "md") == 0 || strcmp(extension, "markdown") == 0)) {
ft = MARKDOWN;
} else if(about_filter && (strcmp(extension, "html") == 0 || strcmp(extension, "htm") == 0)) {
ft = HTML;
} else if(strcmp(extension, "txt") == 0) {
ft = PLAIN;
} else {
ft = CODE;
}
} else {
if(strcmp(file, "Makefile") == 0 || strcmp(file, "Doxyfile")) {
ft = CODE;
}
}
if(ft == PLAIN || ft == HTML) {
char c;
if(ft == PLAIN) {
fputs("<pre>", stdout);
}
while((c = fgetc(stdin)) != EOF) {
if(ft == HTML) {
fputc(c, stdout);
} else {
output_xml_escaped_char(c, stdout);
}
}
if(ft == PLAIN) {
fputs("</pre>", stdout);
}
} else if(ft == MARKDOWN) {
return execl("@lowdown@", "lowdown", NULL);
} else if(ft == CODE) {
return execl(
"@chroma@", "chroma", "--filename", file,
"--html", "--html-tab-width=2", "--html-only", "--html-inline-styles",
"--style=lovelace",
NULL
);
} else {
return 1;
}
return 0;
}
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