mandoc/mdoc.c - diff

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Diff for /mandoc/mdoc.c between version 1.157 and 1.217

version 1.157, 2010/07/04 22:04:04

version 1.217, 2014/07/02 03:48:07

Line 1

/* $Id$ */

* Permission to use, copy, modify, and distribute this software for any

* purpose with or without fee is hereby granted, provided that the above

Line 29

#include <string.h>

#include <time.h>

#include "mdoc.h"

#include "mandoc.h"

#include "regs.h"

#include "mandoc_aux.h"

#include "libmdoc.h"

#include "libmandoc.h"

const char *const __mdoc_macronames[MDOC_MAX] = {

const char *const __mdoc_macronames[MDOC_MAX + 1] = {

"Ap", "Dd", "Dt", "Os",

"Sh", "Ss", "Pp", "D1",

"Dl", "Bd", "Ed", "Bl",

Line 45 const char *const __mdoc_macronames[MDOC_MAX] = {

Line 46 const char *const __mdoc_macronames[MDOC_MAX] = {

"Ic", "In", "Li", "Nd",

"Nm", "Op", "Ot", "Pa",

"Rv", "St", "Va", "Vt",

/* LINTED */

"Xr", "%A", "%B", "%D",

/* LINTED */

"%I", "%J", "%N", "%O",

/* LINTED */

"%P", "%R", "%T", "%V",

"Ac", "Ao", "Aq", "At",

"Bc", "Bf", "Bo", "Bq",

Line 66 const char *const __mdoc_macronames[MDOC_MAX] = {

Line 64 const char *const __mdoc_macronames[MDOC_MAX] = {

"Bk", "Ek", "Bt", "Hf",

"Fr", "Ud", "Lb", "Lp",

"Lk", "Mt", "Brq", "Bro",

/* LINTED */

"Brc", "%C", "Es", "En",

/* LINTED */

"Dx", "%Q", "br", "sp",

/* LINTED */

"%U", "Ta", "ll", "text",

"%U", "Ta"

};

const char *const __mdoc_argnames[MDOC_ARG_MAX] = {

"split", "nosplit", "ragged",

"unfilled", "literal", "file",

"offset", "bullet", "dash",

"hyphen", "item", "enum",

"tag", "diag", "hang",

"ohang", "inset", "column",

"width", "compact", "std",

"filled", "words", "emphasis",

"symbolic", "nested", "centered"

};

Line 90 const char * const *mdoc_macronames = __mdoc_macroname

Line 85 const char * const *mdoc_macronames = __mdoc_macroname

const char * const *mdoc_argnames = __mdoc_argnames;

static void mdoc_node_free(struct mdoc_node *);

static void mdoc_node_unlink(struct mdoc *,

struct mdoc_node *);

static void mdoc_free1(struct mdoc *);

static void mdoc_alloc1(struct mdoc *);

static struct mdoc_node *node_alloc(struct mdoc *, int, int,

enum mdoct, enum mdoc_type);

static int node_append(struct mdoc *,

struct mdoc_node *);

#if 0

static int mdoc_preptext(struct mdoc *, int, char *, int);

#endif

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 *

mdoc_node(const struct mdoc *m)

mdoc_node(const struct mdoc *mdoc)

{

return(MDOC_HALT & m->flags ? NULL : m->first);

assert( ! (MDOC_HALT & mdoc->flags));

return(mdoc->first);

}

const struct mdoc_meta *

mdoc_meta(const struct mdoc *m)

mdoc_meta(const struct mdoc *mdoc)

{

return(MDOC_HALT & m->flags ? NULL : &m->meta);

assert( ! (MDOC_HALT & mdoc->flags));

return(&mdoc->meta);

}

* Frees volatile resources (parse tree, meta-data, fields).

Line 141 mdoc_free1(struct mdoc *mdoc)

Line 137 mdoc_free1(struct mdoc *mdoc)

free(mdoc->meta.vol);

if (mdoc->meta.msec)

free(mdoc->meta.msec);

if (mdoc->meta.date)

free(mdoc->meta.date);

}

* Allocate all volatile resources (parse tree, meta-data, fields).

Line 157 mdoc_alloc1(struct mdoc *mdoc)

Line 154 mdoc_alloc1(struct mdoc *mdoc)

mdoc->last = mandoc_calloc(1, sizeof(struct mdoc_node));

mdoc->first = mdoc->last;

mdoc->last->type = MDOC_ROOT;

mdoc->last->tok = MDOC_MAX;

mdoc->next = MDOC_NEXT_CHILD;

}

* Free up volatile resources (see mdoc_free1()) then re-initialises the

* data with mdoc_alloc1(). After invocation, parse data has been reset

Line 175 mdoc_reset(struct mdoc *mdoc)

Line 172 mdoc_reset(struct mdoc *mdoc)

mdoc_alloc1(mdoc);

}

* Completely free up all volatile and non-volatile parse resources.

* After invocation, the pointer is no longer usable.

Line 188 mdoc_free(struct mdoc *mdoc)

Line 184 mdoc_free(struct mdoc *mdoc)

free(mdoc);

}

* Allocate volatile and non-volatile parse resources.

struct mdoc *

mdoc_alloc(struct regset *regs, void *data,

mdoc_alloc(struct roff *roff, struct mparse *parse,

int pflags, mandocmsg msg)

char *defos, int quick)

{

struct mdoc *p;

p = mandoc_calloc(1, sizeof(struct mdoc));

p->msg = msg;

p->parse = parse;

p->data = data;

p->defos = defos;

p->pflags = pflags;

p->quick = quick;

p->regs = regs;

p->roff = roff;

mdoc_hash_init();

mdoc_alloc1(p);

return(p);

}

* Climb back up the parse tree, validating open scopes. Mostly calls

* through to macro_end() in macro.c.

int

mdoc_endparse(struct mdoc *m)

mdoc_endparse(struct mdoc *mdoc)

{

if (MDOC_HALT & m->flags)

assert( ! (MDOC_HALT & mdoc->flags));

return(0);

if (mdoc_macroend(mdoc))

else if (mdoc_macroend(m))

return(1);

m->flags |= MDOC_HALT;

mdoc->flags |= MDOC_HALT;

return(0);

}

int

mdoc_addeqn(struct mdoc *mdoc, const struct eqn *ep)

{

struct mdoc_node *n;

assert( ! (MDOC_HALT & mdoc->flags));

/* No text before an initial macro. */

if (SEC_NONE == mdoc->lastnamed) {

mdoc_pmsg(mdoc, ep->ln, ep->pos, MANDOCERR_NOTEXT);

return(1);

}

n = node_alloc(mdoc, ep->ln, ep->pos, MDOC_MAX, MDOC_EQN);

n->eqn = ep;

if ( ! node_append(mdoc, n))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

return(1);

}

int

mdoc_addspan(struct mdoc *mdoc, const struct tbl_span *sp)

{

struct mdoc_node *n;

assert( ! (MDOC_HALT & mdoc->flags));

/* No text before an initial macro. */

if (SEC_NONE == mdoc->lastnamed) {

mdoc_pmsg(mdoc, sp->line, 0, MANDOCERR_NOTEXT);

return(1);

}

n = node_alloc(mdoc, sp->line, 0, MDOC_MAX, MDOC_TBL);

n->span = sp;

if ( ! node_append(mdoc, n))

return(0);

mdoc->next = MDOC_NEXT_SIBLING;

return(1);

}

* Main parse routine. Parses a single line -- really just hands off to

* the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).

int

mdoc_parseln(struct mdoc *m, int ln, char *buf, int offs)

mdoc_parseln(struct mdoc *mdoc, int ln, char *buf, int offs)

{

if (MDOC_HALT & m->flags)

assert( ! (MDOC_HALT & mdoc->flags));

return(0);

m->flags |= MDOC_NEWLINE;

mdoc->flags |= MDOC_NEWLINE;

* Let the roff nS register switch SYNOPSIS mode early,

Line 247 mdoc_parseln(struct mdoc *m, int ln, char *buf, int of

Line 286 mdoc_parseln(struct mdoc *m, int ln, char *buf, int of

* whether this mode is on or off.

* Note that this mode is also switched by the Sh macro.

if (m->regs->regs[(int)REG_nS].set) {

if (roff_getreg(mdoc->roff, "nS"))

if (m->regs->regs[(int)REG_nS].v.u)

mdoc->flags |= MDOC_SYNOPSIS;

m->flags |= MDOC_SYNOPSIS;

else

mdoc->flags &= ~MDOC_SYNOPSIS;

m->flags &= ~MDOC_SYNOPSIS;

}

return(('.' == buf[offs] || '\'' == buf[offs]) ?

return(roff_getcontrol(mdoc->roff, buf, &offs) ?

mdoc_pmacro(m, ln, buf, offs) :

mdoc_pmacro(mdoc, ln, buf, offs) :

mdoc_ptext(m, ln, buf, offs));

mdoc_ptext(mdoc, ln, buf, offs));

}

int

mdoc_vmsg(struct mdoc *mdoc, enum mandocerr t,

int ln, int pos, const char *fmt, ...)

{

char buf[256];

va_list ap;

va_start(ap, fmt);

vsnprintf(buf, sizeof(buf) - 1, fmt, ap);

va_end(ap);

return((*mdoc->msg)(t, mdoc->data, ln, pos, buf));

}

int

mdoc_macro(MACRO_PROT_ARGS)

{

assert(tok < MDOC_MAX);

/* If we're in the body, deny prologue calls. */

if (MDOC_PROLOGUE & mdoc_macros[tok].flags &&

MDOC_PBODY & m->flags)

MDOC_PBODY & mdoc->flags) {

return(mdoc_pmsg(m, line, ppos, MANDOCERR_BADBODY));

mandoc_vmsg(MANDOCERR_PROLOG_ONLY, mdoc->parse,

line, ppos, "%s", mdoc_macronames[tok]);

return(1);

}

/* If we're in the prologue, deny "body" macros. */

if ( ! (MDOC_PROLOGUE & mdoc_macros[tok].flags) &&

! (MDOC_PBODY & m->flags)) {

! (MDOC_PBODY & mdoc->flags)) {

if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_BADPROLOG))

mandoc_vmsg(MANDOCERR_PROLOG_BAD, mdoc->parse,

return(0);

line, ppos, "%s", mdoc_macronames[tok]);

if (NULL == m->meta.title)

if (NULL == mdoc->meta.msec)

m->meta.title = mandoc_strdup("UNKNOWN");

mdoc->meta.msec = mandoc_strdup("1");

if (NULL == m->meta.vol)

if (NULL == mdoc->meta.title)

m->meta.vol = mandoc_strdup("LOCAL");

mdoc->meta.title = mandoc_strdup("UNKNOWN");

if (NULL == m->meta.os)

if (NULL == mdoc->meta.vol)

m->meta.os = mandoc_strdup("LOCAL");

mdoc->meta.vol = mandoc_strdup("LOCAL");

if (0 == m->meta.date)

if (NULL == mdoc->meta.os)

m->meta.date = time(NULL);

mdoc->meta.os = mandoc_strdup("LOCAL");

m->flags |= MDOC_PBODY;

if (NULL == mdoc->meta.date)

mdoc->meta.date = mandoc_normdate

(mdoc->parse, NULL, line, ppos);

mdoc->flags |= MDOC_PBODY;

}

return((*mdoc_macros[tok].fp)(m, tok, line, ppos, pos, buf));

return((*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf));

}

Line 316 node_append(struct mdoc *mdoc, struct mdoc_node *p)

Line 343 node_append(struct mdoc *mdoc, struct mdoc_node *p)

assert(MDOC_ROOT != p->type);

switch (mdoc->next) {

case (MDOC_NEXT_SIBLING):

case MDOC_NEXT_SIBLING:

mdoc->last->next = p;

p->prev = mdoc->last;

p->parent = mdoc->last->parent;

break;

case (MDOC_NEXT_CHILD):

case MDOC_NEXT_CHILD:

mdoc->last->child = p;

p->parent = mdoc->last;

break;

Line 332 node_append(struct mdoc *mdoc, struct mdoc_node *p)

Line 359 node_append(struct mdoc *mdoc, struct mdoc_node *p)

p->parent->nchild++;

* Copy over the normalised-data pointer of our parent. Not

* everybody has one, but copying a null pointer is fine.

switch (p->type) {

case MDOC_BODY:

if (ENDBODY_NOT != p->end)

break;

/* FALLTHROUGH */

case MDOC_TAIL:

/* FALLTHROUGH */

case MDOC_HEAD:

p->norm = p->parent->norm;

break;

default:

break;

}

if ( ! mdoc_valid_pre(mdoc, p))

return(0);

if ( ! mdoc_action_pre(mdoc, p))

return(0);

switch (p->type) {

case (MDOC_HEAD):

case MDOC_HEAD:

assert(MDOC_BLOCK == p->parent->type);

p->parent->head = p;

break;

case (MDOC_TAIL):

case MDOC_TAIL:

assert(MDOC_BLOCK == p->parent->type);

p->parent->tail = p;

break;

case (MDOC_BODY):

case MDOC_BODY:

if (p->end)

break;

assert(MDOC_BLOCK == p->parent->type);

Line 359 node_append(struct mdoc *mdoc, struct mdoc_node *p)

Line 403 node_append(struct mdoc *mdoc, struct mdoc_node *p)

mdoc->last = p;

switch (p->type) {

case (MDOC_TEXT):

case MDOC_TBL:

/* FALLTHROUGH */

case MDOC_TEXT:

if ( ! mdoc_valid_post(mdoc))

return(0);

if ( ! mdoc_action_post(mdoc))

return(0);

break;

default:

break;

Line 372 node_append(struct mdoc *mdoc, struct mdoc_node *p)

Line 416 node_append(struct mdoc *mdoc, struct mdoc_node *p)

return(1);

}

static struct mdoc_node *

node_alloc(struct mdoc *m, int line, int pos,

node_alloc(struct mdoc *mdoc, int line, int pos,

enum mdoct tok, enum mdoc_type type)

{

struct mdoc_node *p;

p = mandoc_calloc(1, sizeof(struct mdoc_node));

p->sec = m->lastsec;

p->sec = mdoc->lastsec;

p->line = line;

p->pos = pos;

p->lastline = line;

p->tok = tok;

p->type = type;

/* Flag analysis. */

if (MDOC_SYNOPSIS & m->flags)

if (MDOC_SYNOPSIS & mdoc->flags)

p->flags |= MDOC_SYNPRETTY;

else

p->flags &= ~MDOC_SYNPRETTY;

if (MDOC_NEWLINE & m->flags)

if (MDOC_NEWLINE & mdoc->flags)

p->flags |= MDOC_LINE;

m->flags &= ~MDOC_NEWLINE;

mdoc->flags &= ~MDOC_NEWLINE;

return(p);

}

int

mdoc_tail_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)

mdoc_tail_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)

{

struct mdoc_node *p;

p = node_alloc(m, line, pos, tok, MDOC_TAIL);

p = node_alloc(mdoc, line, pos, tok, MDOC_TAIL);

if ( ! node_append(m, p))

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

return(1);

}

int

mdoc_head_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)

mdoc_head_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)

{

struct mdoc_node *p;

assert(m->first);

assert(mdoc->first);

assert(m->last);

assert(mdoc->last);

p = node_alloc(m, line, pos, tok, MDOC_HEAD);

p = node_alloc(mdoc, line, pos, tok, MDOC_HEAD);

if ( ! node_append(m, p))

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

return(1);

}

int

mdoc_body_alloc(struct mdoc *m, int line, int pos, enum mdoct tok)

mdoc_body_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok)

{

struct mdoc_node *p;

p = node_alloc(m, line, pos, tok, MDOC_BODY);

p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);

if ( ! node_append(m, p))

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

return(1);

}

int

mdoc_endbody_alloc(struct mdoc *m, int line, int pos, enum mdoct tok,

mdoc_endbody_alloc(struct mdoc *mdoc, int line, int pos, enum mdoct tok,

struct mdoc_node *body, enum mdoc_endbody end)

{

struct mdoc_node *p;

p = node_alloc(m, line, pos, tok, MDOC_BODY);

p = node_alloc(mdoc, line, pos, tok, MDOC_BODY);

p->pending = body;

p->norm = body->norm;

p->end = end;

if ( ! node_append(m, p))

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_SIBLING;

mdoc->next = MDOC_NEXT_SIBLING;

return(1);

}

int

mdoc_block_alloc(struct mdoc *m, int line, int pos,

mdoc_block_alloc(struct mdoc *mdoc, int line, int pos,

enum mdoct tok, struct mdoc_arg *args)

{

struct mdoc_node *p;

p = node_alloc(m, line, pos, tok, MDOC_BLOCK);

p = node_alloc(mdoc, line, pos, tok, MDOC_BLOCK);

p->args = args;

if (p->args)

(args->refcnt)++;

if ( ! node_append(m, p))

switch (tok) {

case MDOC_Bd:

/* FALLTHROUGH */

case MDOC_Bf:

/* FALLTHROUGH */

case MDOC_Bl:

/* FALLTHROUGH */

case MDOC_En:

/* FALLTHROUGH */

case MDOC_Rs:

p->norm = mandoc_calloc(1, sizeof(union mdoc_data));

break;

default:

break;

}

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

return(1);

}

int

mdoc_elem_alloc(struct mdoc *m, int line, int pos,

mdoc_elem_alloc(struct mdoc *mdoc, int line, int pos,

enum mdoct tok, struct mdoc_arg *args)

{

struct mdoc_node *p;

p = node_alloc(m, line, pos, tok, MDOC_ELEM);

p = node_alloc(mdoc, line, pos, tok, MDOC_ELEM);

p->args = args;

if (p->args)

(args->refcnt)++;

if ( ! node_append(m, p))

switch (tok) {

case MDOC_An:

p->norm = mandoc_calloc(1, sizeof(union mdoc_data));

break;

default:

break;

}

if ( ! node_append(mdoc, p))

return(0);

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

return(1);

}

int

mdoc_word_alloc(struct mdoc *m, int line, int pos, const char *p)

mdoc_word_alloc(struct mdoc *mdoc, int line, int pos, const char *p)

{

struct mdoc_node *n;

size_t sv, len;

len = strlen(p);

n = node_alloc(mdoc, line, pos, MDOC_MAX, MDOC_TEXT);

n->string = roff_strdup(mdoc->roff, p);

n = node_alloc(m, line, pos, MDOC_MAX, MDOC_TEXT);

if ( ! node_append(mdoc, n))

n->string = mandoc_malloc(len + 1);

sv = strlcpy(n->string, p, len + 1);

/* Prohibit truncation. */

assert(sv < len + 1);

if ( ! node_append(m, n))

return(0);

m->next = MDOC_NEXT_SIBLING;

mdoc->next = MDOC_NEXT_SIBLING;

return(1);

}

void

mdoc_word_append(struct mdoc *mdoc, const char *p)

{

struct mdoc_node *n;

char *addstr, *newstr;

n = mdoc->last;

addstr = roff_strdup(mdoc->roff, p);

mandoc_asprintf(&newstr, "%s %s", n->string, addstr);

free(addstr);

free(n->string);

n->string = newstr;

mdoc->next = MDOC_NEXT_SIBLING;

}

static void

mdoc_node_free(struct mdoc_node *p)

{

if (MDOC_BLOCK == p->type || MDOC_ELEM == p->type)

* XXX: if these end up being problematic in terms of memory

free(p->norm);

* management and dereferencing freed blocks, then make them

* into reference-counted double-pointers.

if (MDOC_Bd == p->tok && MDOC_BLOCK == p->type)

if (p->data.Bd)

free(p->data.Bd);

if (MDOC_Bl == p->tok && MDOC_BLOCK == p->type)

if (p->data.Bl)

free(p->data.Bl);

if (MDOC_Bf == p->tok && MDOC_HEAD == p->type)

if (p->data.Bf)

free(p->data.Bf);

if (p->string)

free(p->string);

if (p->args)

Line 542 mdoc_node_free(struct mdoc_node *p)

Line 599 mdoc_node_free(struct mdoc_node *p)

free(p);

}

static void

mdoc_node_unlink(struct mdoc *m, struct mdoc_node *n)

mdoc_node_unlink(struct mdoc *mdoc, struct mdoc_node *n)

{

/* Adjust siblings. */

Line 560 mdoc_node_unlink(struct mdoc *m, struct mdoc_node *n)

Line 616 mdoc_node_unlink(struct mdoc *m, struct mdoc_node *n)

n->parent->nchild--;

if (n->parent->child == n)

n->parent->child = n->prev ? n->prev : n->next;

if (n->parent->last == n)

n->parent->last = n->prev ? n->prev : NULL;

}

/* Adjust parse point, if applicable. */

if (m && m->last == n) {

if (mdoc && mdoc->last == n) {

if (n->prev) {

m->last = n->prev;

mdoc->last = n->prev;

m->next = MDOC_NEXT_SIBLING;

mdoc->next = MDOC_NEXT_SIBLING;

} else {

m->last = n->parent;

mdoc->last = n->parent;

m->next = MDOC_NEXT_CHILD;

mdoc->next = MDOC_NEXT_CHILD;

}

if (m && m->first == n)

if (mdoc && mdoc->first == n)

m->first = NULL;

mdoc->first = NULL;

}

void

mdoc_node_delete(struct mdoc *m, struct mdoc_node *p)

mdoc_node_delete(struct mdoc *mdoc, struct mdoc_node *p)

{

while (p->child) {

assert(p->nchild);

mdoc_node_delete(m, p->child);

mdoc_node_delete(mdoc, p->child);

}

assert(0 == p->nchild);

mdoc_node_unlink(m, p);

mdoc_node_unlink(mdoc, p);

mdoc_node_free(p);

}

int

mdoc_node_relink(struct mdoc *mdoc, struct mdoc_node *p)

{

mdoc_node_unlink(mdoc, p);

return(node_append(mdoc, p));

}

#if 0

* Pre-treat a text line.

* Text lines can consist of equations, which must be handled apart from

* the regular text.

* Thus, use this function to step through a line checking if it has any

* equations embedded in it.

* This must handle multiple equations AND equations that do not end at

* the end-of-line, i.e., will re-enter in the next roff parse.

static int

mdoc_preptext(struct mdoc *mdoc, int line, char *buf, int offs)

{

char *start, *end;

char delim;

while ('\0' != buf[offs]) {

/* Mark starting position if eqn is set. */

start = NULL;

if ('\0' != (delim = roff_eqndelim(mdoc->roff)))

if (NULL != (start = strchr(buf + offs, delim)))

*start++ = '\0';

/* Parse text as normal. */

if ( ! mdoc_ptext(mdoc, line, buf, offs))

return(0);

/* Continue only if an equation exists. */

if (NULL == start)

break;

/* Read past the end of the equation. */

offs += start - (buf + offs);

assert(start == &buf[offs]);

if (NULL != (end = strchr(buf + offs, delim))) {

*end++ = '\0';

while (' ' == *end)

end++;

}

/* Parse the equation itself. */

roff_openeqn(mdoc->roff, NULL, line, offs, buf);

/* Process a finished equation? */

if (roff_closeeqn(mdoc->roff))

if ( ! mdoc_addeqn(mdoc, roff_eqn(mdoc->roff)))

return(0);

offs += (end - (buf + offs));

}

return(1);

}

#endif

* Parse free-form text, that is, a line that does not begin with the

* control character.

static int

mdoc_ptext(struct mdoc *m, int line, char *buf, int offs)

mdoc_ptext(struct mdoc *mdoc, int line, char *buf, int offs)

{

char *c, *ws, *end;

struct mdoc_node *n;

/* Ignore bogus comments. */

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)

if (SEC_NONE == mdoc->lastnamed) {

return(mdoc_pmsg(m, line, offs, MANDOCERR_NOTEXT));

mdoc_pmsg(mdoc, line, offs, MANDOCERR_NOTEXT);

return(1);

}

assert(m->last);

assert(mdoc->last);

n = m->last;

n = mdoc->last;

* Divert directly to list processing if we're encountering a

Line 627 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

Line 740 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&

LIST_column == n->data.Bl->type) {

LIST_column == n->norm->Bl.type) {

/* `Bl' is open without any children. */

m->flags |= MDOC_FREECOL;

mdoc->flags |= MDOC_FREECOL;

return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));

return(mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf));

}

if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&

NULL != n->parent &&

MDOC_Bl == n->parent->tok &&

LIST_column == n->parent->data.Bl->type) {

LIST_column == n->parent->norm->Bl.type) {

/* `Bl' has block-level `It' children. */

m->flags |= MDOC_FREECOL;

mdoc->flags |= MDOC_FREECOL;

return(mdoc_macro(m, MDOC_It, line, offs, &offs, buf));

return(mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf));

}

Line 651 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

Line 764 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

ws = NULL;

for (c = end = buf + offs; *c; c++) {

switch (*c) {

case '-':

if (mandoc_hyph(buf + offs, c))

*c = ASCII_HYPH;

ws = NULL;

break;

case ' ':

if (NULL == ws)

ws = c;

Line 672 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

Line 780 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

* Strip trailing tabs in literal context only;

* outside, they affect the next line.

if (MDOC_LITERAL & m->flags)

if (MDOC_LITERAL & mdoc->flags)

continue;

break;

case '\\':

Line 689 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

Line 797 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

*end = '\0';

if (ws)

if ( ! mdoc_pmsg(m, line, (int)(ws-buf), MANDOCERR_EOLNSPACE))

mdoc_pmsg(mdoc, line, (int)(ws-buf), MANDOCERR_EOLNSPACE);

return(0);

if ('\0' == buf[offs] && ! (MDOC_LITERAL & m->flags)) {

if ('\0' == buf[offs] && ! (MDOC_LITERAL & mdoc->flags)) {

if ( ! mdoc_pmsg(m, line, (int)(c-buf), MANDOCERR_NOBLANKLN))

mdoc_pmsg(mdoc, line, (int)(c-buf), MANDOCERR_NOBLANKLN);

return(0);

* Insert a `Pp' in the case of a blank line. Technically,

* Insert a `sp' in the case of a blank line. Technically,

* blank lines aren't allowed, but enough manuals assume this

* behaviour that we want to work around it.

if ( ! mdoc_elem_alloc(m, line, offs, MDOC_Pp, NULL))

if ( ! mdoc_elem_alloc(mdoc, line, offs, MDOC_sp, NULL))

return(0);

m->next = MDOC_NEXT_SIBLING;

mdoc->next = MDOC_NEXT_SIBLING;

return(1);

return(mdoc_valid_post(mdoc));

}

if ( ! mdoc_word_alloc(m, line, offs, buf+offs))

if ( ! mdoc_word_alloc(mdoc, line, offs, buf+offs))

return(0);

if (MDOC_LITERAL & m->flags)

if (MDOC_LITERAL & mdoc->flags)

return(1);

Line 723 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

Line 830 mdoc_ptext(struct mdoc *m, int line, char *buf, int of

assert(buf < end);

if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))

m->last->flags |= MDOC_EOS;

mdoc->last->flags |= MDOC_EOS;

return(1);

}

static int

macrowarn(struct mdoc *m, int ln, const char *buf, int offs)

{

int rc;

rc = mdoc_vmsg(m, MANDOCERR_MACRO, ln, offs,

"unknown macro: %s%s",

buf, strlen(buf) > 3 ? "..." : "");

/* FIXME: logic should be in driver. */

/* FIXME: broken, will error out and not omit a message. */

return(MDOC_IGN_MACRO & m->pflags ? rc : 0);

}

* Parse a macro line, that is, a line beginning with the control

* character.

static int

mdoc_pmacro(struct mdoc *m, int ln, char *buf, int offs)

mdoc_pmacro(struct mdoc *mdoc, int ln, char *buf, int offs)

{

enum mdoct tok;

int i, j, sv;

int i, sv;

char mac[5];

struct mdoc_node *n;

/* Empty lines are ignored. */

/* Empty post-control lines are ignored. */

offs++;

if ('"' == buf[offs]) {

mdoc_pmsg(mdoc, ln, offs, MANDOCERR_BADCOMMENT);

if ('\0' == buf[offs])

return(1);

} else if ('\0' == buf[offs])

return(1);

i = offs;

sv = offs;

/* Accept whitespace after the initial control char. */

* Copy the first word into a nil-terminated buffer.

* Stop copying when a tab, space, or eoln is encountered.

if (' ' == buf[i]) {

i = 0;

i++;

while (i < 4 && '\0' != buf[offs] && ' ' != buf[offs] &&

while (buf[i] && ' ' == buf[i])

'\t' != buf[offs])

i++;

mac[i++] = buf[offs++];

if ('\0' == buf[i])

return(1);

}

sv = i;

mac[i] = '\0';

/* Copy the first word into a nil-terminated buffer. */

tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : MDOC_MAX;

for (j = 0; j < 4; j++, i++) {

if (MDOC_MAX == tok) {

if ('\0' == (mac[j] = buf[i]))

mandoc_vmsg(MANDOCERR_MACRO, mdoc->parse,

break;

ln, sv, "%s", buf + sv - 1);

else if (' ' == buf[i])

return(1);

break;

/* Check for invalid characters. */

if (isgraph((u_char)buf[i]))

continue;

if ( ! mdoc_pmsg(m, ln, i, MANDOCERR_BADCHAR))

return(0);

i--;

}

mac[j] = '\0';

/* Disregard the first trailing tab, if applicable. */

if (j == 4 || j < 2) {

if ('\t' == buf[offs])

if ( ! macrowarn(m, ln, mac, sv))

offs++;

goto err;

return(1);

}

if (MDOC_MAX == (tok = mdoc_hash_find(mac))) {

if ( ! macrowarn(m, ln, mac, sv))

goto err;

return(1);

}

/* The macro is sane. Jump to the next word. */

/* Jump to the next non-whitespace word. */

while (buf[i] && ' ' == buf[i])

while (buf[offs] && ' ' == buf[offs])

i++;

offs++;

* Trailing whitespace. Note that tabs are allowed to be passed

* into the parser as "text", so we only warn about spaces here.

if ('\0' == buf[i] && ' ' == buf[i - 1])

if ('\0' == buf[offs] && ' ' == buf[offs - 1])

if ( ! mdoc_pmsg(m, ln, i - 1, MANDOCERR_EOLNSPACE))

mdoc_pmsg(mdoc, ln, offs - 1, MANDOCERR_EOLNSPACE);

goto err;

* If an initial macro or a list invocation, divert directly

* into macro processing.

if (NULL == m->last || MDOC_It == tok || MDOC_El == tok) {

if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) {

if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))

if ( ! mdoc_macro(mdoc, tok, ln, sv, &offs, buf))

goto err;

return(1);

}

n = m->last;

n = mdoc->last;

assert(m->last);

assert(mdoc->last);

* If the first macro of a `Bl -column', open an `It' block

Line 842 mdoc_pmacro(struct mdoc *m, int ln, char *buf, int off

Line 915 mdoc_pmacro(struct mdoc *m, int ln, char *buf, int off

if (MDOC_Bl == n->tok && MDOC_BODY == n->type &&

LIST_column == n->data.Bl->type) {

LIST_column == n->norm->Bl.type) {

m->flags |= MDOC_FREECOL;

mdoc->flags |= MDOC_FREECOL;

if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))

if ( ! mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf))

goto err;

return(1);

}

Line 856 mdoc_pmacro(struct mdoc *m, int ln, char *buf, int off

Line 929 mdoc_pmacro(struct mdoc *m, int ln, char *buf, int off

if (MDOC_It == n->tok && MDOC_BLOCK == n->type &&

NULL != n->parent &&

MDOC_Bl == n->parent->tok &&

LIST_column == n->parent->data.Bl->type) {

LIST_column == n->parent->norm->Bl.type) {

m->flags |= MDOC_FREECOL;

mdoc->flags |= MDOC_FREECOL;

if ( ! mdoc_macro(m, MDOC_It, ln, sv, &sv, buf))

if ( ! mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf))

goto err;

return(1);

}

/* Normal processing of a macro. */

if ( ! mdoc_macro(m, tok, ln, sv, &i, buf))

if ( ! mdoc_macro(mdoc, tok, ln, sv, &offs, buf))

goto err;

/* In quick mode (for mandocdb), abort after the NAME section. */

if (mdoc->quick && MDOC_Sh == tok &&

SEC_NAME != mdoc->last->sec)

return(2);

return(1);

err: /* Error out. */

m->flags |= MDOC_HALT;

mdoc->flags |= MDOC_HALT;

return(0);

}

enum mdelim

mdoc_isdelim(const char *p)

{

if ('\0' == p[0])

return(DELIM_NONE);

if ('\0' == p[1])

switch (p[0]) {

case '(':

/* FALLTHROUGH */

case '[':

return(DELIM_OPEN);

case '|':

return(DELIM_MIDDLE);

case '.':

/* FALLTHROUGH */

case ',':

/* FALLTHROUGH */

case ';':

/* FALLTHROUGH */

case ':':

/* FALLTHROUGH */

case '?':

/* FALLTHROUGH */

case '!':

/* FALLTHROUGH */

case ')':

/* FALLTHROUGH */

case ']':

return(DELIM_CLOSE);

default:

return(DELIM_NONE);

}

if ('\\' != p[0])

return(DELIM_NONE);

if (0 == strcmp(p + 1, "."))

return(DELIM_CLOSE);

if (0 == strcmp(p + 1, "fR|\\fP"))

return(DELIM_MIDDLE);

return(DELIM_NONE);

}

void

mdoc_deroff(char **dest, const struct mdoc_node *n)

{

char *cp;

size_t sz;

if (MDOC_TEXT != n->type) {

for (n = n->child; n; n = n->next)

mdoc_deroff(dest, n);

return;

}

/* Skip leading whitespace. */

for (cp = n->string; '\0' != *cp; cp++)

if (0 == isspace((unsigned char)*cp))

break;

/* Skip trailing whitespace. */

for (sz = strlen(cp); sz; sz--)

if (0 == isspace((unsigned char)cp[sz-1]))

break;

/* Skip empty strings. */

if (0 == sz)

return;

if (NULL == *dest) {

*dest = mandoc_strndup(cp, sz);

return;

}

mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);

free(*dest);

*dest = cp;

}

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