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authorKristaps Dzonsons <kristaps@bsd.lv>2009-02-21 21:00:06 +0000
committerKristaps Dzonsons <kristaps@bsd.lv>2009-02-21 21:00:06 +0000
commit60e35d64ece3aeaabb2d0c25b9ab5c651c0bb48d (patch)
treece372bcf5575640cc1bf04d6bef8f0d0c3149854 /mdocterm.c
parent90b7feb891f3f87751c0a0c0b57b38c8834ede8e (diff)
downloadmandoc-60e35d64ece3aeaabb2d0c25b9ab5c651c0bb48d.tar.gz
Split mdocml -> mdocterm, mdoctree (new manuals, etc.).
Escape-recognition term.c.
Diffstat (limited to 'mdocterm.c')
-rw-r--r--mdocterm.c289
1 files changed, 289 insertions, 0 deletions
diff --git a/mdocterm.c b/mdocterm.c
new file mode 100644
index 00000000..9dccd5c5
--- /dev/null
+++ b/mdocterm.c
@@ -0,0 +1,289 @@
+ /* $Id$ */
+/*
+ * Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the
+ * above copyright notice and this permission notice appear in all
+ * copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL
+ * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE
+ * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
+ * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR
+ * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+ * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
+#include <sys/stat.h>
+#include <sys/param.h>
+
+#include <assert.h>
+#include <fcntl.h>
+#include <err.h>
+#include <getopt.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "mdoc.h"
+#include "term.h"
+
+#define MD_LINE_SZ (256) /* Max input line size. */
+
+struct md_parse {
+ int warn; /* Warning flags. */
+#define MD_WARN_SYNTAX (1 << 0) /* Show syntax warnings. */
+#define MD_WARN_COMPAT (1 << 1) /* Show compat warnings. */
+#define MD_WARN_ALL (0x03) /* Show all warnings. */
+#define MD_WARN_ERR (1 << 2) /* Make warnings->errors. */
+ int dbg; /* Debug level. */
+ struct mdoc *mdoc; /* Active parser. */
+ char *buf; /* Input buffer. */
+ u_long bufsz; /* Input buffer size. */
+ char *in; /* Input file name. */
+ int fdin; /* Input file desc. */
+};
+
+extern char *__progname;
+
+static void usage(void);
+static int getsopts(struct md_parse *, char *);
+static int parse(struct md_parse *);
+static void msg_msg(void *, int, int, const char *);
+static int msg_err(void *, int, int, const char *);
+static int msg_warn(void *, int, int,
+ enum mdoc_warn, const char *);
+
+#ifdef __linux__
+extern int getsubopt(char **, char *const *, char **);
+#endif
+
+int
+main(int argc, char *argv[])
+{
+ struct md_parse p;
+ struct mdoc_cb cb;
+ struct stat st;
+ int c;
+ extern char *optarg;
+ extern int optind;
+
+ (void)memset(&p, 0, sizeof(struct md_parse));
+
+ while (-1 != (c = getopt(argc, argv, "vW:")))
+ switch (c) {
+ case ('v'):
+ p.dbg++;
+ break;
+ case ('W'):
+ if ( ! getsopts(&p, optarg))
+ return(0);
+ break;
+ default:
+ usage();
+ return(0);
+ }
+
+ argv += optind;
+ argc -= optind;
+
+ /* Initialise the input file. */
+
+ p.in = "-";
+ p.fdin = STDIN_FILENO;
+
+ if (argc > 0) {
+ p.in = *argv++;
+ p.fdin = open(p.in, O_RDONLY, 0);
+ if (-1 == p.fdin)
+ err(1, "%s", p.in);
+ }
+
+ /* Allocate a buffer to be BUFSIZ/block size. */
+
+ if (-1 == fstat(p.fdin, &st)) {
+ warn("%s", p.in);
+ p.bufsz = BUFSIZ;
+ } else
+ p.bufsz = MAX(st.st_blksize, BUFSIZ);
+
+ p.buf = malloc(p.bufsz);
+ if (NULL == p.buf)
+ err(1, "malloc");
+
+ /* Allocate the parser. */
+
+ cb.mdoc_err = msg_err;
+ cb.mdoc_warn = msg_warn;
+ cb.mdoc_msg = msg_msg;
+
+ p.mdoc = mdoc_alloc(&p, &cb);
+
+ /* Parse the input file. */
+
+ c = parse(&p);
+ free(p.buf);
+
+ if (STDIN_FILENO != p.fdin && -1 == close(p.fdin))
+ warn("%s", p.in);
+
+ if (0 == c) {
+ mdoc_free(p.mdoc);
+ return(EXIT_FAILURE);
+ }
+
+ /* If the parse succeeded, print it out. */
+
+ termprint(mdoc_node(p.mdoc), mdoc_meta(p.mdoc));
+ mdoc_free(p.mdoc);
+
+ return(EXIT_SUCCESS);
+}
+
+
+static int
+getsopts(struct md_parse *p, char *arg)
+{
+ char *v;
+ char *toks[] = { "all", "compat",
+ "syntax", "error", NULL };
+
+ while (*arg)
+ switch (getsubopt(&arg, toks, &v)) {
+ case (0):
+ p->warn |= MD_WARN_ALL;
+ break;
+ case (1):
+ p->warn |= MD_WARN_COMPAT;
+ break;
+ case (2):
+ p->warn |= MD_WARN_SYNTAX;
+ break;
+ case (3):
+ p->warn |= MD_WARN_ERR;
+ break;
+ default:
+ usage();
+ return(0);
+ }
+
+ return(1);
+}
+
+
+static int
+parse(struct md_parse *p)
+{
+ ssize_t sz, i;
+ size_t pos;
+ char line[MD_LINE_SZ];
+ int lnn;
+
+ /*
+ * This is a little more complicated than fgets. TODO: have
+ * some benchmarks that show it's faster (note that I want to
+ * check many, many manuals simultaneously, so speed is
+ * important). Fill a buffer (sized to the block size) with a
+ * single read, then parse \n-terminated lines into a line
+ * buffer, which is passed to the parser. Hard-code the line
+ * buffer to a particular size -- a reasonable assumption.
+ */
+
+ for (lnn = 1, pos = 0; ; ) {
+ if (-1 == (sz = read(p->fdin, p->buf, p->bufsz))) {
+ warn("%s", p->in);
+ return(0);
+ } else if (0 == sz)
+ break;
+
+ for (i = 0; i < sz; i++) {
+ if ('\n' != p->buf[i]) {
+ if (pos < sizeof(line)) {
+ line[(int)pos++] = p->buf[(int)i];
+ continue;
+ }
+ warnx("%s: line %d too long", p->in, lnn);
+ return(0);
+ }
+
+ line[(int)pos] = 0;
+ if ( ! mdoc_parseln(p->mdoc, lnn, line))
+ return(0);
+
+ lnn++;
+ pos = 0;
+ }
+ }
+
+ return(mdoc_endparse(p->mdoc));
+}
+
+
+static int
+msg_err(void *arg, int line, int col, const char *msg)
+{
+ struct md_parse *p;
+
+ p = (struct md_parse *)arg;
+
+ warnx("%s:%d: error: %s (column %d)",
+ p->in, line, msg, col);
+ return(0);
+}
+
+
+static void
+msg_msg(void *arg, int line, int col, const char *msg)
+{
+ struct md_parse *p;
+
+ p = (struct md_parse *)arg;
+
+ if (0 == p->dbg)
+ return;
+
+ warnx("%s:%d: debug: %s (column %d)",
+ p->in, line, msg, col);
+}
+
+
+static int
+msg_warn(void *arg, int line, int col,
+ enum mdoc_warn type, const char *msg)
+{
+ struct md_parse *p;
+
+ p = (struct md_parse *)arg;
+
+ switch (type) {
+ case (WARN_COMPAT):
+ if (p->warn & MD_WARN_COMPAT)
+ break;
+ return(1);
+ case (WARN_SYNTAX):
+ if (p->warn & MD_WARN_SYNTAX)
+ break;
+ return(1);
+ }
+
+ warnx("%s:%d: warning: %s (column %d)",
+ p->in, line, msg, col);
+
+ if ( ! (p->warn & MD_WARN_ERR))
+ return(1);
+
+ warnx("%s: considering warnings as errors", __progname);
+ return(0);
+}
+
+
+static void
+usage(void)
+{
+
+ warnx("usage: %s [-v] [-Wwarn...] [infile]", __progname);
+}
+