diff options
Diffstat (limited to 'cmark/src/main.c')
| -rw-r--r-- | cmark/src/main.c | 213 |
1 files changed, 213 insertions, 0 deletions
diff --git a/cmark/src/main.c b/cmark/src/main.c new file mode 100644 index 0000000000..9a43cceda7 --- /dev/null +++ b/cmark/src/main.c @@ -0,0 +1,213 @@ +#include <errno.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "cmark.h" +#include "node.h" + +#if defined(__OpenBSD__) +# include <sys/param.h> +# if OpenBSD >= 201605 +# define USE_PLEDGE +# include <unistd.h> +# endif +#endif + +#if defined(_WIN32) && !defined(__CYGWIN__) +#include <io.h> +#include <fcntl.h> +#endif + +typedef enum { + FORMAT_NONE, + FORMAT_HTML, + FORMAT_XML, + FORMAT_MAN, + FORMAT_COMMONMARK, + FORMAT_LATEX +} writer_format; + +void print_usage(void) { + printf("Usage: cmark [FILE*]\n"); + printf("Options:\n"); + printf(" --to, -t FORMAT Specify output format (html, xml, man, " + "commonmark, latex)\n"); + printf(" --width WIDTH Specify wrap width (default 0 = nowrap)\n"); + printf(" --sourcepos Include source position attribute\n"); + printf(" --hardbreaks Treat newlines as hard line breaks\n"); + printf(" --nobreaks Render soft line breaks as spaces\n"); + printf(" --safe Omit raw HTML and dangerous URLs\n"); + printf(" --unsafe Render raw HTML and dangerous URLs\n"); + printf(" --smart Use smart punctuation\n"); + printf(" --validate-utf8 Replace invalid UTF-8 sequences with U+FFFD\n"); + printf(" --help, -h Print usage information\n"); + printf(" --version Print version\n"); +} + +static void print_document(cmark_node *document, writer_format writer, + int options, int width) { + char *result; + + switch (writer) { + case FORMAT_HTML: + result = cmark_render_html(document, options); + break; + case FORMAT_XML: + result = cmark_render_xml(document, options); + break; + case FORMAT_MAN: + result = cmark_render_man(document, options, width); + break; + case FORMAT_COMMONMARK: + result = cmark_render_commonmark(document, options, width); + break; + case FORMAT_LATEX: + result = cmark_render_latex(document, options, width); + break; + default: + fprintf(stderr, "Unknown format %d\n", writer); + exit(1); + } + fwrite(result, strlen(result), 1, stdout); + document->mem->free(result); +} + +int main(int argc, char *argv[]) { + int i, numfps = 0; + int *files; + char buffer[4096]; + cmark_parser *parser; + size_t bytes; + cmark_node *document; + int width = 0; + char *unparsed; + writer_format writer = FORMAT_HTML; + int options = CMARK_OPT_DEFAULT; + +#ifdef USE_PLEDGE + if (pledge("stdio rpath", NULL) != 0) { + perror("pledge"); + return 1; + } +#endif + +#if defined(_WIN32) && !defined(__CYGWIN__) + _setmode(_fileno(stdin), _O_BINARY); + _setmode(_fileno(stdout), _O_BINARY); +#endif + + files = (int *)calloc(argc, sizeof(*files)); + + for (i = 1; i < argc; i++) { + if (strcmp(argv[i], "--version") == 0) { + printf("cmark %s", CMARK_VERSION_STRING); + printf(" - CommonMark converter\n(C) 2014-2016 John MacFarlane\n"); + exit(0); + } else if (strcmp(argv[i], "--sourcepos") == 0) { + options |= CMARK_OPT_SOURCEPOS; + } else if (strcmp(argv[i], "--hardbreaks") == 0) { + options |= CMARK_OPT_HARDBREAKS; + } else if (strcmp(argv[i], "--nobreaks") == 0) { + options |= CMARK_OPT_NOBREAKS; + } else if (strcmp(argv[i], "--smart") == 0) { + options |= CMARK_OPT_SMART; + } else if (strcmp(argv[i], "--safe") == 0) { + options |= CMARK_OPT_SAFE; + } else if (strcmp(argv[i], "--unsafe") == 0) { + options |= CMARK_OPT_UNSAFE; + } else if (strcmp(argv[i], "--validate-utf8") == 0) { + options |= CMARK_OPT_VALIDATE_UTF8; + } else if ((strcmp(argv[i], "--help") == 0) || + (strcmp(argv[i], "-h") == 0)) { + print_usage(); + exit(0); + } else if (strcmp(argv[i], "--width") == 0) { + i += 1; + if (i < argc) { + width = (int)strtol(argv[i], &unparsed, 10); + if (unparsed && strlen(unparsed) > 0) { + fprintf(stderr, "failed parsing width '%s' at '%s'\n", argv[i], + unparsed); + exit(1); + } + } else { + fprintf(stderr, "--width requires an argument\n"); + exit(1); + } + } else if ((strcmp(argv[i], "-t") == 0) || (strcmp(argv[i], "--to") == 0)) { + i += 1; + if (i < argc) { + if (strcmp(argv[i], "man") == 0) { + writer = FORMAT_MAN; + } else if (strcmp(argv[i], "html") == 0) { + writer = FORMAT_HTML; + } else if (strcmp(argv[i], "xml") == 0) { + writer = FORMAT_XML; + } else if (strcmp(argv[i], "commonmark") == 0) { + writer = FORMAT_COMMONMARK; + } else if (strcmp(argv[i], "latex") == 0) { + writer = FORMAT_LATEX; + } else { + fprintf(stderr, "Unknown format %s\n", argv[i]); + exit(1); + } + } else { + fprintf(stderr, "No argument provided for %s\n", argv[i - 1]); + exit(1); + } + } else if (*argv[i] == '-') { + print_usage(); + exit(1); + } else { // treat as file argument + files[numfps++] = i; + } + } + + parser = cmark_parser_new(options); + for (i = 0; i < numfps; i++) { + FILE *fp = fopen(argv[files[i]], "rb"); + if (fp == NULL) { + fprintf(stderr, "Error opening file %s: %s\n", argv[files[i]], + strerror(errno)); + exit(1); + } + + while ((bytes = fread(buffer, 1, sizeof(buffer), fp)) > 0) { + cmark_parser_feed(parser, buffer, bytes); + if (bytes < sizeof(buffer)) { + break; + } + } + + fclose(fp); + } + + if (numfps == 0) { + + while ((bytes = fread(buffer, 1, sizeof(buffer), stdin)) > 0) { + cmark_parser_feed(parser, buffer, bytes); + if (bytes < sizeof(buffer)) { + break; + } + } + } + +#ifdef USE_PLEDGE + if (pledge("stdio", NULL) != 0) { + perror("pledge"); + return 1; + } +#endif + + document = cmark_parser_finish(parser); + cmark_parser_free(parser); + + print_document(document, writer, options, width); + + cmark_node_free(document); + + free(files); + + return 0; +} |