-/* $Id: mdoc_argv.c,v 1.77 2011/05/12 23:44:01 kristaps Exp $ */
+/* $Id: mdoc_argv.c,v 1.120 2019/07/11 17:06:17 schwarze Exp $ */
/*
- * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
+ * Copyright (c) 2012, 2014-2019 Ingo Schwarze <schwarze@openbsd.org>
*
* 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
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS 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.
*/
-#ifdef HAVE_CONFIG_H
#include "config.h"
-#endif
#include <sys/types.h>
#include <assert.h>
-#include <ctype.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
-#include "mdoc.h"
+#include "mandoc_aux.h"
#include "mandoc.h"
-#include "libmdoc.h"
+#include "roff.h"
+#include "mdoc.h"
#include "libmandoc.h"
+#include "roff_int.h"
+#include "libmdoc.h"
#define MULTI_STEP 5 /* pre-allocate argument values */
-#define DELIMSZ 6 /* max possible size of a delimiter */
+#define DELIMSZ 6 /* max possible size of a delimiter */
enum argsflag {
ARGSFL_NONE = 0,
enum argvflag {
ARGV_NONE, /* no args to flag (e.g., -split) */
ARGV_SINGLE, /* one arg to flag (e.g., -file xxx) */
- ARGV_MULTI, /* multiple args (e.g., -column xxx yyy) */
- ARGV_OPT_SINGLE /* optional arg (e.g., -offset [xxx]) */
+ ARGV_MULTI /* multiple args (e.g., -column xxx yyy) */
};
-static enum mdocargt argv_a2arg(enum mdoct, const char *);
-static enum margserr args(struct mdoc *, int, int *,
+struct mdocarg {
+ enum argsflag flags;
+ const enum mdocargt *argvs;
+};
+
+static void argn_free(struct mdoc_arg *, int);
+static enum margserr args(struct roff_man *, int, int *,
char *, enum argsflag, char **);
static int args_checkpunct(const char *, int);
-static int argv(struct mdoc *, int,
- struct mdoc_argv *, int *, char *);
-static int argv_single(struct mdoc *, int,
+static void argv_multi(struct roff_man *, int,
struct mdoc_argv *, int *, char *);
-static int argv_opt_single(struct mdoc *, int,
+static void argv_single(struct roff_man *, int,
struct mdoc_argv *, int *, char *);
-static int argv_multi(struct mdoc *, int,
- struct mdoc_argv *, int *, char *);
-static void argn_free(struct mdoc_arg *, int);
static const enum argvflag argvflags[MDOC_ARG_MAX] = {
ARGV_NONE, /* MDOC_Split */
ARGV_NONE, /* MDOC_Unfilled */
ARGV_NONE, /* MDOC_Literal */
ARGV_SINGLE, /* MDOC_File */
- ARGV_OPT_SINGLE, /* MDOC_Offset */
+ ARGV_SINGLE, /* MDOC_Offset */
ARGV_NONE, /* MDOC_Bullet */
ARGV_NONE, /* MDOC_Dash */
ARGV_NONE, /* MDOC_Hyphen */
ARGV_NONE /* MDOC_Symbolic */
};
-static const enum argsflag argflags[MDOC_MAX] = {
- ARGSFL_NONE, /* Ap */
- ARGSFL_NONE, /* Dd */
- ARGSFL_NONE, /* Dt */
- ARGSFL_NONE, /* Os */
- ARGSFL_NONE, /* Sh */
- ARGSFL_NONE, /* Ss */
- ARGSFL_NONE, /* Pp */
- ARGSFL_DELIM, /* D1 */
- ARGSFL_DELIM, /* Dl */
- ARGSFL_NONE, /* Bd */
- ARGSFL_NONE, /* Ed */
- ARGSFL_NONE, /* Bl */
- ARGSFL_NONE, /* El */
- ARGSFL_NONE, /* It */
- ARGSFL_DELIM, /* Ad */
- ARGSFL_DELIM, /* An */
- ARGSFL_DELIM, /* Ar */
- ARGSFL_NONE, /* Cd */
- ARGSFL_DELIM, /* Cm */
- ARGSFL_DELIM, /* Dv */
- ARGSFL_DELIM, /* Er */
- ARGSFL_DELIM, /* Ev */
- ARGSFL_NONE, /* Ex */
- ARGSFL_DELIM, /* Fa */
- ARGSFL_NONE, /* Fd */
- ARGSFL_DELIM, /* Fl */
- ARGSFL_DELIM, /* Fn */
- ARGSFL_DELIM, /* Ft */
- ARGSFL_DELIM, /* Ic */
- ARGSFL_NONE, /* In */
- ARGSFL_DELIM, /* Li */
- ARGSFL_NONE, /* Nd */
- ARGSFL_DELIM, /* Nm */
- ARGSFL_DELIM, /* Op */
- ARGSFL_NONE, /* Ot */
- ARGSFL_DELIM, /* Pa */
- ARGSFL_NONE, /* Rv */
- ARGSFL_DELIM, /* St */
- ARGSFL_DELIM, /* Va */
- ARGSFL_DELIM, /* Vt */
- ARGSFL_DELIM, /* Xr */
- ARGSFL_NONE, /* %A */
- ARGSFL_NONE, /* %B */
- ARGSFL_NONE, /* %D */
- ARGSFL_NONE, /* %I */
- ARGSFL_NONE, /* %J */
- ARGSFL_NONE, /* %N */
- ARGSFL_NONE, /* %O */
- ARGSFL_NONE, /* %P */
- ARGSFL_NONE, /* %R */
- ARGSFL_NONE, /* %T */
- ARGSFL_NONE, /* %V */
- ARGSFL_DELIM, /* Ac */
- ARGSFL_NONE, /* Ao */
- ARGSFL_DELIM, /* Aq */
- ARGSFL_DELIM, /* At */
- ARGSFL_DELIM, /* Bc */
- ARGSFL_NONE, /* Bf */
- ARGSFL_NONE, /* Bo */
- ARGSFL_DELIM, /* Bq */
- ARGSFL_DELIM, /* Bsx */
- ARGSFL_DELIM, /* Bx */
- ARGSFL_NONE, /* Db */
- ARGSFL_DELIM, /* Dc */
- ARGSFL_NONE, /* Do */
- ARGSFL_DELIM, /* Dq */
- ARGSFL_DELIM, /* Ec */
- ARGSFL_NONE, /* Ef */
- ARGSFL_DELIM, /* Em */
- ARGSFL_NONE, /* Eo */
- ARGSFL_DELIM, /* Fx */
- ARGSFL_DELIM, /* Ms */
- ARGSFL_DELIM, /* No */
- ARGSFL_DELIM, /* Ns */
- ARGSFL_DELIM, /* Nx */
- ARGSFL_DELIM, /* Ox */
- ARGSFL_DELIM, /* Pc */
- ARGSFL_DELIM, /* Pf */
- ARGSFL_NONE, /* Po */
- ARGSFL_DELIM, /* Pq */
- ARGSFL_DELIM, /* Qc */
- ARGSFL_DELIM, /* Ql */
- ARGSFL_NONE, /* Qo */
- ARGSFL_DELIM, /* Qq */
- ARGSFL_NONE, /* Re */
- ARGSFL_NONE, /* Rs */
- ARGSFL_DELIM, /* Sc */
- ARGSFL_NONE, /* So */
- ARGSFL_DELIM, /* Sq */
- ARGSFL_NONE, /* Sm */
- ARGSFL_DELIM, /* Sx */
- ARGSFL_DELIM, /* Sy */
- ARGSFL_DELIM, /* Tn */
- ARGSFL_DELIM, /* Ux */
- ARGSFL_DELIM, /* Xc */
- ARGSFL_NONE, /* Xo */
- ARGSFL_NONE, /* Fo */
- ARGSFL_NONE, /* Fc */
- ARGSFL_NONE, /* Oo */
- ARGSFL_DELIM, /* Oc */
- ARGSFL_NONE, /* Bk */
- ARGSFL_NONE, /* Ek */
- ARGSFL_NONE, /* Bt */
- ARGSFL_NONE, /* Hf */
- ARGSFL_NONE, /* Fr */
- ARGSFL_NONE, /* Ud */
- ARGSFL_NONE, /* Lb */
- ARGSFL_NONE, /* Lp */
- ARGSFL_DELIM, /* Lk */
- ARGSFL_DELIM, /* Mt */
- ARGSFL_DELIM, /* Brq */
- ARGSFL_NONE, /* Bro */
- ARGSFL_DELIM, /* Brc */
- ARGSFL_NONE, /* %C */
- ARGSFL_NONE, /* Es */
- ARGSFL_NONE, /* En */
- ARGSFL_NONE, /* Dx */
- ARGSFL_NONE, /* %Q */
- ARGSFL_NONE, /* br */
- ARGSFL_NONE, /* sp */
- ARGSFL_NONE, /* %U */
- ARGSFL_NONE, /* Ta */
-};
-
static const enum mdocargt args_Ex[] = {
MDOC_Std,
MDOC_ARG_MAX
MDOC_ARG_MAX
};
+static const struct mdocarg mdocargs[MDOC_MAX - MDOC_Dd] = {
+ { ARGSFL_NONE, NULL }, /* Dd */
+ { ARGSFL_NONE, NULL }, /* Dt */
+ { ARGSFL_NONE, NULL }, /* Os */
+ { ARGSFL_NONE, NULL }, /* Sh */
+ { ARGSFL_NONE, NULL }, /* Ss */
+ { ARGSFL_NONE, NULL }, /* Pp */
+ { ARGSFL_DELIM, NULL }, /* D1 */
+ { ARGSFL_DELIM, NULL }, /* Dl */
+ { ARGSFL_NONE, args_Bd }, /* Bd */
+ { ARGSFL_NONE, NULL }, /* Ed */
+ { ARGSFL_NONE, args_Bl }, /* Bl */
+ { ARGSFL_NONE, NULL }, /* El */
+ { ARGSFL_NONE, NULL }, /* It */
+ { ARGSFL_DELIM, NULL }, /* Ad */
+ { ARGSFL_DELIM, args_An }, /* An */
+ { ARGSFL_DELIM, NULL }, /* Ap */
+ { ARGSFL_DELIM, NULL }, /* Ar */
+ { ARGSFL_DELIM, NULL }, /* Cd */
+ { ARGSFL_DELIM, NULL }, /* Cm */
+ { ARGSFL_DELIM, NULL }, /* Dv */
+ { ARGSFL_DELIM, NULL }, /* Er */
+ { ARGSFL_DELIM, NULL }, /* Ev */
+ { ARGSFL_NONE, args_Ex }, /* Ex */
+ { ARGSFL_DELIM, NULL }, /* Fa */
+ { ARGSFL_NONE, NULL }, /* Fd */
+ { ARGSFL_DELIM, NULL }, /* Fl */
+ { ARGSFL_DELIM, NULL }, /* Fn */
+ { ARGSFL_DELIM, NULL }, /* Ft */
+ { ARGSFL_DELIM, NULL }, /* Ic */
+ { ARGSFL_DELIM, NULL }, /* In */
+ { ARGSFL_DELIM, NULL }, /* Li */
+ { ARGSFL_NONE, NULL }, /* Nd */
+ { ARGSFL_DELIM, NULL }, /* Nm */
+ { ARGSFL_DELIM, NULL }, /* Op */
+ { ARGSFL_DELIM, NULL }, /* Ot */
+ { ARGSFL_DELIM, NULL }, /* Pa */
+ { ARGSFL_NONE, args_Ex }, /* Rv */
+ { ARGSFL_DELIM, NULL }, /* St */
+ { ARGSFL_DELIM, NULL }, /* Va */
+ { ARGSFL_DELIM, NULL }, /* Vt */
+ { ARGSFL_DELIM, NULL }, /* Xr */
+ { ARGSFL_NONE, NULL }, /* %A */
+ { ARGSFL_NONE, NULL }, /* %B */
+ { ARGSFL_NONE, NULL }, /* %D */
+ { ARGSFL_NONE, NULL }, /* %I */
+ { ARGSFL_NONE, NULL }, /* %J */
+ { ARGSFL_NONE, NULL }, /* %N */
+ { ARGSFL_NONE, NULL }, /* %O */
+ { ARGSFL_NONE, NULL }, /* %P */
+ { ARGSFL_NONE, NULL }, /* %R */
+ { ARGSFL_NONE, NULL }, /* %T */
+ { ARGSFL_NONE, NULL }, /* %V */
+ { ARGSFL_DELIM, NULL }, /* Ac */
+ { ARGSFL_NONE, NULL }, /* Ao */
+ { ARGSFL_DELIM, NULL }, /* Aq */
+ { ARGSFL_DELIM, NULL }, /* At */
+ { ARGSFL_DELIM, NULL }, /* Bc */
+ { ARGSFL_NONE, args_Bf }, /* Bf */
+ { ARGSFL_NONE, NULL }, /* Bo */
+ { ARGSFL_DELIM, NULL }, /* Bq */
+ { ARGSFL_DELIM, NULL }, /* Bsx */
+ { ARGSFL_DELIM, NULL }, /* Bx */
+ { ARGSFL_NONE, NULL }, /* Db */
+ { ARGSFL_DELIM, NULL }, /* Dc */
+ { ARGSFL_NONE, NULL }, /* Do */
+ { ARGSFL_DELIM, NULL }, /* Dq */
+ { ARGSFL_DELIM, NULL }, /* Ec */
+ { ARGSFL_NONE, NULL }, /* Ef */
+ { ARGSFL_DELIM, NULL }, /* Em */
+ { ARGSFL_NONE, NULL }, /* Eo */
+ { ARGSFL_DELIM, NULL }, /* Fx */
+ { ARGSFL_DELIM, NULL }, /* Ms */
+ { ARGSFL_DELIM, NULL }, /* No */
+ { ARGSFL_DELIM, NULL }, /* Ns */
+ { ARGSFL_DELIM, NULL }, /* Nx */
+ { ARGSFL_DELIM, NULL }, /* Ox */
+ { ARGSFL_DELIM, NULL }, /* Pc */
+ { ARGSFL_DELIM, NULL }, /* Pf */
+ { ARGSFL_NONE, NULL }, /* Po */
+ { ARGSFL_DELIM, NULL }, /* Pq */
+ { ARGSFL_DELIM, NULL }, /* Qc */
+ { ARGSFL_DELIM, NULL }, /* Ql */
+ { ARGSFL_NONE, NULL }, /* Qo */
+ { ARGSFL_DELIM, NULL }, /* Qq */
+ { ARGSFL_NONE, NULL }, /* Re */
+ { ARGSFL_NONE, NULL }, /* Rs */
+ { ARGSFL_DELIM, NULL }, /* Sc */
+ { ARGSFL_NONE, NULL }, /* So */
+ { ARGSFL_DELIM, NULL }, /* Sq */
+ { ARGSFL_NONE, NULL }, /* Sm */
+ { ARGSFL_DELIM, NULL }, /* Sx */
+ { ARGSFL_DELIM, NULL }, /* Sy */
+ { ARGSFL_DELIM, NULL }, /* Tn */
+ { ARGSFL_DELIM, NULL }, /* Ux */
+ { ARGSFL_DELIM, NULL }, /* Xc */
+ { ARGSFL_NONE, NULL }, /* Xo */
+ { ARGSFL_NONE, NULL }, /* Fo */
+ { ARGSFL_DELIM, NULL }, /* Fc */
+ { ARGSFL_NONE, NULL }, /* Oo */
+ { ARGSFL_DELIM, NULL }, /* Oc */
+ { ARGSFL_NONE, args_Bk }, /* Bk */
+ { ARGSFL_NONE, NULL }, /* Ek */
+ { ARGSFL_NONE, NULL }, /* Bt */
+ { ARGSFL_NONE, NULL }, /* Hf */
+ { ARGSFL_DELIM, NULL }, /* Fr */
+ { ARGSFL_NONE, NULL }, /* Ud */
+ { ARGSFL_DELIM, NULL }, /* Lb */
+ { ARGSFL_NONE, NULL }, /* Lp */
+ { ARGSFL_DELIM, NULL }, /* Lk */
+ { ARGSFL_DELIM, NULL }, /* Mt */
+ { ARGSFL_DELIM, NULL }, /* Brq */
+ { ARGSFL_NONE, NULL }, /* Bro */
+ { ARGSFL_DELIM, NULL }, /* Brc */
+ { ARGSFL_NONE, NULL }, /* %C */
+ { ARGSFL_NONE, NULL }, /* Es */
+ { ARGSFL_DELIM, NULL }, /* En */
+ { ARGSFL_DELIM, NULL }, /* Dx */
+ { ARGSFL_NONE, NULL }, /* %Q */
+ { ARGSFL_NONE, NULL }, /* %U */
+ { ARGSFL_NONE, NULL }, /* Ta */
+};
+
+
/*
- * Parse an argument from line text. This comes in the form of -key
- * [value0...], which may either have a single mandatory value, at least
- * one mandatory value, an optional single value, or no value.
+ * Parse flags and their arguments from the input line.
+ * These come in the form -flag [argument ...].
+ * Some flags take no argument, some one, some multiple.
*/
-enum margverr
-mdoc_argv(struct mdoc *m, int line, enum mdoct tok,
- struct mdoc_arg **v, int *pos, char *buf)
+void
+mdoc_argv(struct roff_man *mdoc, int line, enum roff_tok tok,
+ struct mdoc_arg **reta, int *pos, char *buf)
{
- char *p, sv;
- struct mdoc_argv tmp;
- struct mdoc_arg *arg;
+ struct mdoc_argv tmpv;
+ struct mdoc_argv **retv;
+ const enum mdocargt *argtable;
+ char *argname;
+ int ipos, retc;
+ char savechar;
+
+ *reta = NULL;
- if ('\0' == buf[*pos])
- return(ARGV_EOLN);
+ /* Which flags does this macro support? */
- assert(' ' != buf[*pos]);
+ assert(tok >= MDOC_Dd && tok < MDOC_MAX);
+ argtable = mdocargs[tok - MDOC_Dd].argvs;
+ if (argtable == NULL)
+ return;
- /* Parse through to the first unescaped space. */
+ /* Loop over the flags on the input line. */
- p = &buf[++(*pos)];
+ ipos = *pos;
+ while (buf[ipos] == '-') {
- assert(*pos > 0);
+ /* Seek to the first unescaped space. */
- /* LINTED */
- while (buf[*pos]) {
- if (' ' == buf[*pos])
- if ('\\' != buf[*pos - 1])
+ for (argname = buf + ++ipos; buf[ipos] != '\0'; ipos++)
+ if (buf[ipos] == ' ' && buf[ipos - 1] != '\\')
break;
- (*pos)++;
- }
- /* XXX - save zeroed byte, if not an argument. */
+ /*
+ * We want to nil-terminate the word to look it up.
+ * But we may not have a flag, in which case we need
+ * to restore the line as-is. So keep around the
+ * stray byte, which we'll reset upon exiting.
+ */
- sv = '\0';
- if (buf[*pos]) {
- sv = buf[*pos];
- buf[(*pos)++] = '\0';
- }
+ if ((savechar = buf[ipos]) != '\0')
+ buf[ipos++] = '\0';
- memset(&tmp, 0, sizeof(struct mdoc_argv));
- tmp.line = line;
- tmp.pos = *pos;
+ /*
+ * Now look up the word as a flag. Use temporary
+ * storage that we'll copy into the node's flags.
+ */
- /* See if our token accepts the argument. */
+ while ((tmpv.arg = *argtable++) != MDOC_ARG_MAX)
+ if ( ! strcmp(argname, mdoc_argnames[tmpv.arg]))
+ break;
- if (MDOC_ARG_MAX == (tmp.arg = argv_a2arg(tok, p))) {
- /* XXX - restore saved zeroed byte. */
- if (sv)
- buf[*pos - 1] = sv;
- return(ARGV_WORD);
- }
+ /* If it isn't a flag, restore the saved byte. */
+
+ if (tmpv.arg == MDOC_ARG_MAX) {
+ if (savechar != '\0')
+ buf[ipos - 1] = savechar;
+ break;
+ }
+
+ /* Read to the next word (the first argument). */
+
+ while (buf[ipos] == ' ')
+ ipos++;
+
+ /* Parse the arguments of the flag. */
- while (buf[*pos] && ' ' == buf[*pos])
- (*pos)++;
+ tmpv.line = line;
+ tmpv.pos = *pos;
+ tmpv.sz = 0;
+ tmpv.value = NULL;
- if ( ! argv(m, line, &tmp, pos, buf))
- return(ARGV_ERROR);
+ switch (argvflags[tmpv.arg]) {
+ case ARGV_SINGLE:
+ argv_single(mdoc, line, &tmpv, &ipos, buf);
+ break;
+ case ARGV_MULTI:
+ argv_multi(mdoc, line, &tmpv, &ipos, buf);
+ break;
+ case ARGV_NONE:
+ break;
+ }
- if (NULL == (arg = *v))
- arg = *v = mandoc_calloc(1, sizeof(struct mdoc_arg));
+ /* Append to the return values. */
- arg->argc++;
- arg->argv = mandoc_realloc
- (arg->argv, arg->argc * sizeof(struct mdoc_argv));
+ if (*reta == NULL)
+ *reta = mandoc_calloc(1, sizeof(**reta));
- memcpy(&arg->argv[(int)arg->argc - 1],
- &tmp, sizeof(struct mdoc_argv));
+ retc = ++(*reta)->argc;
+ retv = &(*reta)->argv;
+ *retv = mandoc_reallocarray(*retv, retc, sizeof(**retv));
+ memcpy(*retv + retc - 1, &tmpv, sizeof(**retv));
- return(ARGV_ARG);
+ /* Prepare for parsing the next flag. */
+
+ *pos = ipos;
+ argtable = mdocargs[tok - MDOC_Dd].argvs;
+ }
}
void
arg = &p->argv[iarg];
if (arg->sz && arg->value) {
- for (j = (int)arg->sz - 1; j >= 0; j--)
+ for (j = (int)arg->sz - 1; j >= 0; j--)
free(arg->value[j]);
free(arg->value);
}
}
enum margserr
-mdoc_zargs(struct mdoc *m, int line, int *pos, char *buf, char **v)
-{
-
- return(args(m, line, pos, buf, ARGSFL_NONE, v));
-}
-
-enum margserr
-mdoc_args(struct mdoc *m, int line, int *pos,
- char *buf, enum mdoct tok, char **v)
+mdoc_args(struct roff_man *mdoc, int line, int *pos,
+ char *buf, enum roff_tok tok, char **v)
{
+ struct roff_node *n;
enum argsflag fl;
- struct mdoc_node *n;
- fl = argflags[tok];
-
- if (MDOC_It != tok)
- return(args(m, line, pos, buf, fl, v));
+ fl = tok == TOKEN_NONE ? ARGSFL_NONE : mdocargs[tok - MDOC_Dd].flags;
/*
* We know that we're in an `It', so it's reasonable to expect
* safe fall-back into the default behaviour.
*/
- for (n = m->last; n; n = n->parent)
- if (MDOC_Bl == n->tok)
- if (LIST_column == n->norm->Bl.type) {
+ if (tok == MDOC_It) {
+ for (n = mdoc->last; n != NULL; n = n->parent) {
+ if (n->tok != MDOC_Bl)
+ continue;
+ if (n->norm->Bl.type == LIST_column)
fl = ARGSFL_TABSEP;
- break;
- }
+ break;
+ }
+ }
- return(args(m, line, pos, buf, fl, v));
+ return args(mdoc, line, pos, buf, fl, v);
}
static enum margserr
-args(struct mdoc *m, int line, int *pos,
+args(struct roff_man *mdoc, int line, int *pos,
char *buf, enum argsflag fl, char **v)
{
- char *p, *pp;
- enum margserr rc;
-
- assert(' ' != buf[*pos]);
-
- if ('\0' == buf[*pos]) {
- if (MDOC_PPHRASE & m->flags)
- return(ARGS_EOLN);
- /*
- * If we're not in a partial phrase and the flag for
- * being a phrase literal is still set, the punctuation
- * is unterminated.
- */
- if (MDOC_PHRASELIT & m->flags)
- mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
-
- m->flags &= ~MDOC_PHRASELIT;
- return(ARGS_EOLN);
+ char *p;
+ char *v_local;
+ int pairs;
+
+ if (buf[*pos] == '\0') {
+ if (mdoc->flags & MDOC_PHRASELIT &&
+ ! (mdoc->flags & MDOC_PHRASE)) {
+ mandoc_msg(MANDOCERR_ARG_QUOTE, line, *pos, NULL);
+ mdoc->flags &= ~MDOC_PHRASELIT;
+ }
+ mdoc->flags &= ~MDOC_PHRASEQL;
+ return ARGS_EOLN;
}
- *v = &buf[*pos];
+ if (v == NULL)
+ v = &v_local;
+ *v = buf + *pos;
- if (ARGSFL_DELIM == fl)
- if (args_checkpunct(buf, *pos))
- return(ARGS_PUNCT);
+ if (fl == ARGSFL_DELIM && args_checkpunct(buf, *pos))
+ return ARGS_PUNCT;
/*
- * First handle TABSEP items, restricted to `Bl -column'. This
- * ignores conventional token parsing and instead uses tabs or
- * `Ta' macros to separate phrases. Phrases are parsed again
- * for arguments at a later phase.
+ * Tabs in `It' lines in `Bl -column' can't be escaped.
+ * Phrases are reparsed for `Ta' and other macros later.
*/
- if (ARGSFL_TABSEP == fl) {
- /* Scan ahead to tab (can't be escaped). */
- p = strchr(*v, '\t');
- pp = NULL;
-
- /* Scan ahead to unescaped `Ta'. */
- if ( ! (MDOC_PHRASELIT & m->flags))
- for (pp = *v; ; pp++) {
- if (NULL == (pp = strstr(pp, "Ta")))
- break;
- if (pp > *v && ' ' != *(pp - 1))
- continue;
- if (' ' == *(pp + 2) || '\0' == *(pp + 2))
- break;
- }
-
- /* By default, assume a phrase. */
- rc = ARGS_PHRASE;
-
- /*
- * Adjust new-buffer position to be beyond delimiter
- * mark (e.g., Ta -> end + 2).
- */
- if (p && pp) {
- *pos += pp < p ? 2 : 1;
- rc = pp < p ? ARGS_PHRASE : ARGS_PPHRASE;
- p = pp < p ? pp : p;
- } else if (p && ! pp) {
- rc = ARGS_PPHRASE;
- *pos += 1;
- } else if (pp && ! p) {
- p = pp;
- *pos += 2;
+ if (fl == ARGSFL_TABSEP) {
+ if ((p = strchr(*v, '\t')) != NULL) {
+
+ /*
+ * Words right before and right after
+ * tab characters are not parsed,
+ * unless there is a blank in between.
+ */
+
+ if (p > buf && p[-1] != ' ')
+ mdoc->flags |= MDOC_PHRASEQL;
+ if (p[1] != ' ')
+ mdoc->flags |= MDOC_PHRASEQN;
+
+ /*
+ * One or more blanks after a tab cause
+ * one leading blank in the next column.
+ * So skip all but one of them.
+ */
+
+ *pos += (int)(p - *v) + 1;
+ while (buf[*pos] == ' ' && buf[*pos + 1] == ' ')
+ (*pos)++;
+
+ /*
+ * A tab at the end of an input line
+ * switches to the next column.
+ */
+
+ if (buf[*pos] == '\0' || buf[*pos + 1] == '\0')
+ mdoc->flags |= MDOC_PHRASEQN;
} else {
- rc = ARGS_PEND;
- p = strchr(*v, 0);
+ p = strchr(*v, '\0');
+ if (p[-1] == ' ')
+ mandoc_msg(MANDOCERR_SPACE_EOL,
+ line, *pos, NULL);
+ *pos += (int)(p - *v);
}
- /* Whitespace check for eoln case... */
- if ('\0' == *p && ' ' == *(p - 1))
- mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
+ /* Skip any trailing blank characters. */
+ while (p > *v && p[-1] == ' ' &&
+ (p - 1 == *v || p[-2] != '\\'))
+ p--;
+ *p = '\0';
- *pos += (int)(p - *v);
-
- /* Strip delimiter's preceding whitespace. */
- pp = p - 1;
- while (pp > *v && ' ' == *pp) {
- if (pp > *v && '\\' == *(pp - 1))
- break;
- pp--;
- }
- *(pp + 1) = 0;
-
- /* Strip delimiter's proceeding whitespace. */
- for (pp = &buf[*pos]; ' ' == *pp; pp++, (*pos)++)
- /* Skip ahead. */ ;
-
- return(rc);
- }
+ return ARGS_PHRASE;
+ }
- /*
+ /*
* Process a quoted literal. A quote begins with a double-quote
* and ends with a double-quote NOT preceded by a double-quote.
+ * NUL-terminate the literal in place.
+ * Collapse pairs of quotes inside quoted literals.
* Whitespace is NOT involved in literal termination.
*/
- if (MDOC_PHRASELIT & m->flags || '\"' == buf[*pos]) {
- if ( ! (MDOC_PHRASELIT & m->flags))
+ if (mdoc->flags & MDOC_PHRASELIT ||
+ (mdoc->flags & MDOC_PHRASE && buf[*pos] == '\"')) {
+ if ((mdoc->flags & MDOC_PHRASELIT) == 0) {
*v = &buf[++(*pos)];
-
- if (MDOC_PPHRASE & m->flags)
- m->flags |= MDOC_PHRASELIT;
-
+ mdoc->flags |= MDOC_PHRASELIT;
+ }
+ pairs = 0;
for ( ; buf[*pos]; (*pos)++) {
+ /* Move following text left after quoted quotes. */
+ if (pairs)
+ buf[*pos - pairs] = buf[*pos];
if ('\"' != buf[*pos])
continue;
+ /* Unquoted quotes end quoted args. */
if ('\"' != buf[*pos + 1])
break;
+ /* Quoted quotes collapse. */
+ pairs++;
(*pos)++;
}
-
- if ('\0' == buf[*pos]) {
- if (MDOC_PPHRASE & m->flags)
- return(ARGS_QWORD);
- mdoc_pmsg(m, line, *pos, MANDOCERR_BADQUOTE);
- return(ARGS_QWORD);
+ if (pairs)
+ buf[*pos - pairs] = '\0';
+
+ if (buf[*pos] == '\0') {
+ if ( ! (mdoc->flags & MDOC_PHRASE))
+ mandoc_msg(MANDOCERR_ARG_QUOTE,
+ line, *pos, NULL);
+ return ARGS_WORD;
}
- m->flags &= ~MDOC_PHRASELIT;
+ mdoc->flags &= ~MDOC_PHRASELIT;
buf[(*pos)++] = '\0';
if ('\0' == buf[*pos])
- return(ARGS_QWORD);
+ return ARGS_WORD;
while (' ' == buf[*pos])
(*pos)++;
if ('\0' == buf[*pos])
- mdoc_pmsg(m, line, *pos, MANDOCERR_EOLNSPACE);
+ mandoc_msg(MANDOCERR_SPACE_EOL, line, *pos, NULL);
- return(ARGS_QWORD);
+ return ARGS_WORD;
}
p = &buf[*pos];
- *v = mandoc_getarg(m->parse, &p, line, pos);
+ *v = roff_getarg(mdoc->roff, &p, line, pos);
+ if (v == &v_local)
+ free(*v);
- return(ARGS_WORD);
+ /*
+ * After parsing the last word in this phrase,
+ * tell lookup() whether or not to interpret it.
+ */
+
+ if (*p == '\0' && mdoc->flags & MDOC_PHRASEQL) {
+ mdoc->flags &= ~MDOC_PHRASEQL;
+ mdoc->flags |= MDOC_PHRASEQF;
+ }
+ return ARGS_ALLOC;
}
-/*
+/*
* Check if the string consists only of space-separated closing
* delimiters. This is a bit of a dance: the first must be a close
* delimiter, but it may be followed by middle delimiters. Arbitrary
dbuf[j] = buf[i];
if (DELIMSZ == j)
- return(0);
+ return 0;
dbuf[j] = '\0';
if (DELIM_CLOSE != mdoc_isdelim(dbuf))
- return(0);
+ return 0;
while (' ' == buf[i])
i++;
/* Remaining must NOT be open/none. */
-
+
while (buf[i]) {
j = 0;
while (buf[i] && ' ' != buf[i] && j < DELIMSZ)
dbuf[j++] = buf[i++];
if (DELIMSZ == j)
- return(0);
+ return 0;
dbuf[j] = '\0';
d = mdoc_isdelim(dbuf);
if (DELIM_NONE == d || DELIM_OPEN == d)
- return(0);
+ return 0;
while (' ' == buf[i])
i++;
}
- return('\0' == buf[i]);
-}
-
-/*
- * Match up an argument string (e.g., `-foo bar' having "foo") with the
- * correrct identifier. It must apply to the given macro. If none was
- * found (including bad matches), return MDOC_ARG_MAX.
- */
-static enum mdocargt
-argv_a2arg(enum mdoct tok, const char *p)
-{
- const enum mdocargt *argsp;
-
- argsp = NULL;
-
- switch (tok) {
- case (MDOC_An):
- argsp = args_An;
- break;
- case (MDOC_Bd):
- argsp = args_Bd;
- break;
- case (MDOC_Bf):
- argsp = args_Bf;
- break;
- case (MDOC_Bk):
- argsp = args_Bk;
- break;
- case (MDOC_Bl):
- argsp = args_Bl;
- break;
- case (MDOC_Rv):
- /* FALLTHROUGH */
- case (MDOC_Ex):
- argsp = args_Ex;
- break;
- default:
- return(MDOC_ARG_MAX);
- }
-
- assert(argsp);
-
- for ( ; MDOC_ARG_MAX != *argsp ; argsp++)
- if (0 == strcmp(p, mdoc_argnames[*argsp]))
- return(*argsp);
-
- return(MDOC_ARG_MAX);
+ return '\0' == buf[i];
}
-static int
-argv_multi(struct mdoc *m, int line,
+static void
+argv_multi(struct roff_man *mdoc, int line,
struct mdoc_argv *v, int *pos, char *buf)
{
enum margserr ac;
char *p;
for (v->sz = 0; ; v->sz++) {
- if ('-' == buf[*pos])
+ if (buf[*pos] == '-')
break;
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
- if (ARGS_ERROR == ac)
- return(0);
- else if (ARGS_EOLN == ac)
+ ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
+ if (ac == ARGS_EOLN)
break;
- if (0 == v->sz % MULTI_STEP)
- v->value = mandoc_realloc(v->value,
- (v->sz + MULTI_STEP) * sizeof(char *));
+ if (v->sz % MULTI_STEP == 0)
+ v->value = mandoc_reallocarray(v->value,
+ v->sz + MULTI_STEP, sizeof(char *));
- v->value[(int)v->sz] = mandoc_strdup(p);
+ if (ac != ARGS_ALLOC)
+ p = mandoc_strdup(p);
+ v->value[(int)v->sz] = p;
}
-
- return(1);
}
-static int
-argv_opt_single(struct mdoc *m, int line,
- struct mdoc_argv *v, int *pos, char *buf)
-{
- enum margserr ac;
- char *p;
-
- if ('-' == buf[*pos])
- return(1);
-
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
- if (ARGS_ERROR == ac)
- return(0);
- if (ARGS_EOLN == ac)
- return(1);
-
- v->sz = 1;
- v->value = mandoc_malloc(sizeof(char *));
- v->value[0] = mandoc_strdup(p);
-
- return(1);
-}
-
-/*
- * Parse a single, mandatory value from the stream.
- */
-static int
-argv_single(struct mdoc *m, int line,
+static void
+argv_single(struct roff_man *mdoc, int line,
struct mdoc_argv *v, int *pos, char *buf)
{
- int ppos;
enum margserr ac;
char *p;
- ppos = *pos;
+ ac = args(mdoc, line, pos, buf, ARGSFL_NONE, &p);
+ if (ac == ARGS_EOLN)
+ return;
- ac = args(m, line, pos, buf, ARGSFL_NONE, &p);
- if (ARGS_EOLN == ac) {
- mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTARGVCOUNT);
- return(0);
- } else if (ARGS_ERROR == ac)
- return(0);
+ if (ac != ARGS_ALLOC)
+ p = mandoc_strdup(p);
v->sz = 1;
v->value = mandoc_malloc(sizeof(char *));
- v->value[0] = mandoc_strdup(p);
-
- return(1);
-}
-
-/*
- * Determine rules for parsing arguments. Arguments can either accept
- * no parameters, an optional single parameter, one parameter, or
- * multiple parameters.
- */
-static int
-argv(struct mdoc *mdoc, int line,
- struct mdoc_argv *v, int *pos, char *buf)
-{
-
- v->sz = 0;
- v->value = NULL;
-
- switch (argvflags[v->arg]) {
- case (ARGV_SINGLE):
- return(argv_single(mdoc, line, v, pos, buf));
- case (ARGV_MULTI):
- return(argv_multi(mdoc, line, v, pos, buf));
- case (ARGV_OPT_SINGLE):
- return(argv_opt_single(mdoc, line, v, pos, buf));
- case (ARGV_NONE):
- break;
- default:
- abort();
- /* NOTREACHED */
- }
-
- return(1);
+ v->value[0] = p;
}
git.ckatri.com / mandoc.git / blobdiff