-/* $Id: mdoc.c,v 1.133 2010/05/15 16:24:37 kristaps Exp $ */
+/* $Id: mdoc.c,v 1.138 2010/05/25 12:37:20 kristaps Exp $ */
/*
* Copyright (c) 2008, 2009 Kristaps Dzonsons <kristaps@kth.se>
*
#include <string.h>
#include <time.h>
+#include "mandoc.h"
#include "libmdoc.h"
#include "libmandoc.h"
-const char *const __mdoc_merrnames[MERRMAX] = {
- "trailing whitespace", /* ETAILWS */
- "unexpected quoted parameter", /* EQUOTPARM */
- "unterminated quoted parameter", /* EQUOTTERM */
- "argument parameter suggested", /* EARGVAL */
- "macro disallowed in prologue", /* EBODYPROL */
- "macro disallowed in body", /* EPROLBODY */
- "text disallowed in prologue", /* ETEXTPROL */
- "blank line disallowed", /* ENOBLANK */
- "text parameter too long", /* ETOOLONG */
- "invalid escape sequence", /* EESCAPE */
- "invalid character", /* EPRINT */
- "document has no body", /* ENODAT */
- "document has no prologue", /* ENOPROLOGUE */
- "expected line arguments", /* ELINE */
- "invalid AT&T argument", /* EATT */
- "default name not yet set", /* ENAME */
- "missing list type", /* ELISTTYPE */
- "missing display type", /* EDISPTYPE */
- "too many display types", /* EMULTIDISP */
- "too many list types", /* EMULTILIST */
- "NAME section must be first", /* ESECNAME */
- "badly-formed NAME section", /* ENAMESECINC */
- "argument repeated", /* EARGREP */
- "expected boolean parameter", /* EBOOL */
- "inconsistent column syntax", /* ECOLMIS */
- "nested display invalid", /* ENESTDISP */
- "width argument missing", /* EMISSWIDTH */
- "invalid section for this manual section", /* EWRONGMSEC */
- "section out of conventional order", /* ESECOOO */
- "section repeated", /* ESECREP */
- "invalid standard argument", /* EBADSTAND */
- "multi-line arguments discouraged", /* ENOMULTILINE */
- "multi-line arguments suggested", /* EMULTILINE */
- "line arguments discouraged", /* ENOLINE */
- "prologue macro out of conventional order", /* EPROLOOO */
- "prologue macro repeated", /* EPROLREP */
- "invalid manual section", /* EBADMSEC */
- "invalid font mode", /* EFONT */
- "invalid date syntax", /* EBADDATE */
- "invalid number format", /* ENUMFMT */
- "superfluous width argument", /* ENOWIDTH */
- "system: utsname error", /* EUTSNAME */
- "obsolete macro", /* EOBS */
- "end-of-line scope violation", /* EIMPBRK */
- "empty macro ignored", /* EIGNE */
- "unclosed explicit scope", /* EOPEN */
- "unterminated quoted phrase", /* EQUOTPHR */
- "closure macro without prior context", /* ENOCTX */
- "no description found for library", /* ELIB */
- "bad child for parent context", /* EBADCHILD */
- "list arguments preceding type", /* ENOTYPE */
- "deprecated comment style", /* EBADCOMMENT */
-};
-
const char *const __mdoc_macronames[MDOC_MAX] = {
"Ap", "Dd", "Dt", "Os",
"Sh", "Ss", "Pp", "D1",
enum mdoct, enum mdoc_type);
static int node_append(struct mdoc *,
struct mdoc_node *);
-static int mdoc_ptext(struct mdoc *, int, char *);
-static int mdoc_pmacro(struct mdoc *, int, char *);
-static int macrowarn(struct mdoc *, int, const char *);
+static int mdoc_ptext(struct mdoc *, int, char *, int);
+static int mdoc_pmacro(struct mdoc *, int, char *, int);
+static int macrowarn(struct mdoc *, int,
+ const char *, int);
const struct mdoc_node *
* Allocate volatile and non-volatile parse resources.
*/
struct mdoc *
-mdoc_alloc(void *data, int pflags, const struct mdoc_cb *cb)
+mdoc_alloc(void *data, int pflags, mandocmsg msg)
{
struct mdoc *p;
p = mandoc_calloc(1, sizeof(struct mdoc));
- if (cb)
- memcpy(&p->cb, cb, sizeof(struct mdoc_cb));
-
+ p->msg = msg;
p->data = data;
p->pflags = pflags;
* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
*/
int
-mdoc_parseln(struct mdoc *m, int ln, char *buf)
+mdoc_parseln(struct mdoc *m, int ln, char *buf, int offs)
{
if (MDOC_HALT & m->flags)
return(0);
m->flags |= MDOC_NEWLINE;
- return('.' == *buf ?
- mdoc_pmacro(m, ln, buf) :
- mdoc_ptext(m, ln, buf));
-}
-
-
-int
-mdoc_verr(struct mdoc *mdoc, int ln, int pos,
- const char *fmt, ...)
-{
- char buf[256];
- va_list ap;
-
- if (NULL == mdoc->cb.mdoc_err)
- return(0);
-
- va_start(ap, fmt);
- (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
- va_end(ap);
-
- return((*mdoc->cb.mdoc_err)(mdoc->data, ln, pos, buf));
+ return(('.' == buf[offs] || '\'' == buf[offs]) ?
+ mdoc_pmacro(m, ln, buf, offs) :
+ mdoc_ptext(m, ln, buf, offs));
}
int
-mdoc_vwarn(struct mdoc *mdoc, int ln, int pos, const char *fmt, ...)
+mdoc_vmsg(struct mdoc *mdoc, enum mandocerr t,
+ int ln, int pos, const char *fmt, ...)
{
char buf[256];
va_list ap;
- if (NULL == mdoc->cb.mdoc_warn)
- return(0);
-
va_start(ap, fmt);
- (void)vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
+ vsnprintf(buf, sizeof(buf) - 1, fmt, ap);
va_end(ap);
- return((*mdoc->cb.mdoc_warn)(mdoc->data, ln, pos, buf));
-}
-
-
-int
-mdoc_err(struct mdoc *m, int line, int pos, int iserr, enum merr type)
-{
- const char *p;
-
- p = __mdoc_merrnames[(int)type];
- assert(p);
-
- if (iserr)
- return(mdoc_verr(m, line, pos, p));
-
- return(mdoc_vwarn(m, line, pos, p));
+ return((*mdoc->msg)(t, mdoc->data, ln, pos, buf));
}
if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&
MDOC_PBODY & m->flags)
- return(mdoc_perr(m, ln, pp, EPROLBODY));
+ return(mdoc_pmsg(m, ln, pp, MANDOCERR_BADBODY));
/* If we're in the prologue, deny "body" macros. */
if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&
! (MDOC_PBODY & m->flags)) {
- if ( ! mdoc_pwarn(m, ln, pp, EBODYPROL))
+ if ( ! mdoc_pmsg(m, ln, pp, MANDOCERR_BADPROLOG))
return(0);
if (NULL == m->meta.title)
m->meta.title = mandoc_strdup("unknown");
* control character.
*/
static int
-mdoc_ptext(struct mdoc *m, int line, char *buf)
+mdoc_ptext(struct mdoc *m, int line, char *buf, int offs)
{
- int i;
+ char *c, *ws, *end;
/* Ignore bogus comments. */
- if ('\\' == buf[0] && '.' == buf[1] && '\"' == buf[2])
- return(mdoc_pwarn(m, line, 0, EBADCOMMENT));
+ if ('\\' == buf[offs] &&
+ '.' == buf[offs + 1] &&
+ '"' == buf[offs + 2])
+ return(mdoc_pmsg(m, line, offs, MANDOCERR_BADCOMMENT));
/* No text before an initial macro. */
if (SEC_NONE == m->lastnamed)
- return(mdoc_perr(m, line, 0, ETEXTPROL));
-
- /* Literal just gets pulled in as-is. */
-
- if (MDOC_LITERAL & m->flags)
- return(mdoc_word_alloc(m, line, 0, buf));
+ return(mdoc_pmsg(m, line, offs, MANDOCERR_NOTEXT));
- /* Check for a blank line, which may also consist of spaces. */
+ /*
+ * Search for the beginning of unescaped trailing whitespace (ws)
+ * and for the first character not to be output (end).
+ */
+ ws = NULL;
+ for (c = end = buf + offs; *c; c++) {
+ switch (*c) {
+ case '-':
+ if (mandoc_hyph(buf + offs, c))
+ *c = ASCII_HYPH;
+ break;
+ case ' ':
+ if (NULL == ws)
+ ws = c;
+ continue;
+ case '\t':
+ /*
+ * Always warn about trailing tabs,
+ * even outside literal context,
+ * where they should be put on the next line.
+ */
+ if (NULL == ws)
+ ws = c;
+ /*
+ * Strip trailing tabs in literal context only;
+ * outside, they affect the next line.
+ */
+ if (MDOC_LITERAL & m->flags)
+ continue;
+ break;
+ case '\\':
+ /* Skip the escaped character, too, if any. */
+ if (c[1])
+ c++;
+ /* FALLTHROUGH */
+ default:
+ ws = NULL;
+ break;
+ }
+ end = c + 1;
+ }
+ *end = '\0';
- for (i = 0; ' ' == buf[i]; i++)
- /* Skip to first non-space. */ ;
+ if (ws)
+ if ( ! mdoc_pmsg(m, line, (int)(ws-buf), MANDOCERR_EOLNSPACE))
+ return(0);
- if ('\0' == buf[i]) {
- if ( ! mdoc_pwarn(m, line, 0, ENOBLANK))
+ if ('\0' == buf[offs] && ! (MDOC_LITERAL & m->flags)) {
+ if ( ! mdoc_pmsg(m, line, (int)(c-buf), MANDOCERR_NOBLANKLN))
return(0);
/*
* blank lines aren't allowed, but enough manuals assume this
* behaviour that we want to work around it.
*/
- if ( ! mdoc_elem_alloc(m, line, 0, MDOC_Pp, NULL))
+ if ( ! mdoc_elem_alloc(m, line, offs, MDOC_Pp, NULL))
return(0);
m->next = MDOC_NEXT_SIBLING;
return(1);
}
- /*
- * Warn if the last un-escaped character is whitespace. Then
- * strip away the remaining spaces (tabs stay!).
- */
-
- i = (int)strlen(buf);
- assert(i);
-
- if (' ' == buf[i - 1] || '\t' == buf[i - 1]) {
- if (i > 1 && '\\' != buf[i - 2])
- if ( ! mdoc_pwarn(m, line, i - 1, ETAILWS))
- return(0);
-
- for (--i; i && ' ' == buf[i]; i--)
- /* Spin back to non-space. */ ;
-
- /* Jump ahead of escaped whitespace. */
- i += '\\' == buf[i] ? 2 : 1;
-
- buf[i] = '\0';
- }
-
- /* Allocate the whole word. */
-
- if ( ! mdoc_word_alloc(m, line, 0, buf))
+ if ( ! mdoc_word_alloc(m, line, offs, buf+offs))
return(0);
+ if (MDOC_LITERAL & m->flags)
+ return(1);
+
/*
* End-of-sentence check. If the last character is an unescaped
* EOS character, then flag the node as being the end of a
* sentence. The front-end will know how to interpret this.
*/
- /* FIXME: chain of close delims. */
-
- assert(i);
+ assert(buf < end);
- if (mandoc_eos(buf, (size_t)i))
+ if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
m->last->flags |= MDOC_EOS;
return(1);
static int
-macrowarn(struct mdoc *m, int ln, const char *buf)
+macrowarn(struct mdoc *m, int ln, const char *buf, int offs)
{
- if ( ! (MDOC_IGN_MACRO & m->pflags))
- return(mdoc_verr(m, ln, 0, "unknown macro: %s%s",
- buf, strlen(buf) > 3 ? "..." : ""));
- return(mdoc_vwarn(m, ln, 0, "unknown macro: %s%s",
- buf, strlen(buf) > 3 ? "..." : ""));
+ int rc;
+
+ rc = mdoc_vmsg(m, MANDOCERR_MACRO, ln, offs,
+ "unknown macro: %s%s",
+ buf, strlen(buf) > 3 ? "..." : "");
+
+ /* FIXME: logic should be in driver. */
+ return(MDOC_IGN_MACRO & m->pflags ? rc : 0);
}
* character.
*/
int
-mdoc_pmacro(struct mdoc *m, int ln, char *buf)
+mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs)
{
enum mdoct tok;
int i, j, sv;
/* Empty lines are ignored. */
- if ('\0' == buf[1])
+ offs++;
+
+ if ('\0' == buf[offs])
return(1);
- i = 1;
+ i = offs;
/* Accept whitespace after the initial control char. */
if (isgraph((u_char)buf[i]))
continue;
- return(mdoc_perr(m, ln, i, EPRINT));
+ if ( ! mdoc_pmsg(m, ln, i, MANDOCERR_BADCHAR))
+ return(0);
+ i--;
}
- mac[j] = 0;
+ mac[j] = '\0';
if (j == 4 || j < 2) {
- if ( ! macrowarn(m, ln, mac))
+ if ( ! macrowarn(m, ln, mac, sv))
goto err;
return(1);
}
if (MDOC_MAX == (tok = mdoc_hash_find(mac))) {
- if ( ! macrowarn(m, ln, mac))
+ if ( ! macrowarn(m, ln, mac, sv))
goto err;
return(1);
}
*/
if ('\0' == buf[i] && ' ' == buf[i - 1])
- if ( ! mdoc_pwarn(m, ln, i - 1, ETAILWS))
+ if ( ! mdoc_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE))
goto err;
/*
git.ckatri.com / mandoc.git / blobdiff