version 1.156, 2015/04/18 17:28:36 |
version 1.172, 2017/05/05 15:17:32 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv> |
* Copyright (c) 2013, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2013, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org> |
* Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org> |
* Copyright (c) 2011 Joerg Sonnenberger <joerg@netbsd.org> |
* |
* |
* Permission to use, copy, modify, and distribute this software for any |
* Permission to use, copy, modify, and distribute this software for any |
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#include "roff.h" |
#include "roff.h" |
#include "man.h" |
#include "man.h" |
#include "libmandoc.h" |
#include "libmandoc.h" |
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#include "roff_int.h" |
#include "libman.h" |
#include "libman.h" |
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const char *const __man_macronames[MAN_MAX] = { |
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"br", "TH", "SH", "SS", |
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"TP", "LP", "PP", "P", |
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"IP", "HP", "SM", "SB", |
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"BI", "IB", "BR", "RB", |
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"R", "B", "I", "IR", |
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"RI", "sp", "nf", |
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"fi", "RE", "RS", "DT", |
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"UC", "PD", "AT", "in", |
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"ft", "OP", "EX", "EE", |
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"UR", "UE", "ll" |
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}; |
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const char * const *man_macronames = __man_macronames; |
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static void man_breakscope(struct roff_man *, int); |
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static void man_descope(struct roff_man *, int, int); |
static void man_descope(struct roff_man *, int, int); |
static struct roff_node *man_node_alloc(struct roff_man *, int, int, |
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enum roff_type, int); |
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static void man_node_append(struct roff_man *, |
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struct roff_node *); |
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static void man_node_free(struct roff_node *); |
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static void man_node_unlink(struct roff_man *, |
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struct roff_node *); |
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static int man_ptext(struct roff_man *, int, char *, int); |
static int man_ptext(struct roff_man *, int, char *, int); |
static int man_pmacro(struct roff_man *, int, char *, int); |
static int man_pmacro(struct roff_man *, int, char *, int); |
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const struct roff_node * |
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man_node(const struct roff_man *man) |
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{ |
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return(man->first); |
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} |
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const struct roff_meta * |
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man_meta(const struct roff_man *man) |
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{ |
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return(&man->meta); |
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} |
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void |
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man_endparse(struct roff_man *man) |
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{ |
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man_macroend(man); |
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} |
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int |
int |
man_parseln(struct roff_man *man, int ln, char *buf, int offs) |
man_parseln(struct roff_man *man, int ln, char *buf, int offs) |
{ |
{ |
Line 90 man_parseln(struct roff_man *man, int ln, char *buf, i |
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Line 47 man_parseln(struct roff_man *man, int ln, char *buf, i |
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if (man->last->type != ROFFT_EQN || ln > man->last->line) |
if (man->last->type != ROFFT_EQN || ln > man->last->line) |
man->flags |= MAN_NEWLINE; |
man->flags |= MAN_NEWLINE; |
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return (roff_getcontrol(man->roff, buf, &offs) ? |
return roff_getcontrol(man->roff, buf, &offs) ? |
man_pmacro(man, ln, buf, offs) : |
man_pmacro(man, ln, buf, offs) : |
man_ptext(man, ln, buf, offs)); |
man_ptext(man, ln, buf, offs); |
} |
} |
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static void |
static void |
man_node_append(struct roff_man *man, struct roff_node *p) |
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{ |
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assert(man->last); |
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assert(man->first); |
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assert(p->type != ROFFT_ROOT); |
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switch (man->next) { |
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case ROFF_NEXT_SIBLING: |
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man->last->next = p; |
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p->prev = man->last; |
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p->parent = man->last->parent; |
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break; |
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case ROFF_NEXT_CHILD: |
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man->last->child = p; |
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p->parent = man->last; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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assert(p->parent); |
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p->parent->nchild++; |
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switch (p->type) { |
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case ROFFT_BLOCK: |
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if (p->tok == MAN_SH || p->tok == MAN_SS) |
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man->flags &= ~MAN_LITERAL; |
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break; |
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case ROFFT_HEAD: |
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assert(p->parent->type == ROFFT_BLOCK); |
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p->parent->head = p; |
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break; |
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case ROFFT_BODY: |
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assert(p->parent->type == ROFFT_BLOCK); |
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p->parent->body = p; |
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break; |
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default: |
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break; |
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} |
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man->last = p; |
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switch (p->type) { |
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case ROFFT_TBL: |
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/* FALLTHROUGH */ |
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case ROFFT_TEXT: |
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man_valid_post(man); |
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break; |
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default: |
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break; |
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} |
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} |
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static struct roff_node * |
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man_node_alloc(struct roff_man *man, int line, int pos, |
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enum roff_type type, int tok) |
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{ |
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struct roff_node *p; |
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p = mandoc_calloc(1, sizeof(*p)); |
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p->line = line; |
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p->pos = pos; |
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p->type = type; |
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p->tok = tok; |
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if (man->flags & MAN_NEWLINE) |
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p->flags |= MAN_LINE; |
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man->flags &= ~MAN_NEWLINE; |
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return(p); |
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} |
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void |
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man_elem_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *p; |
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p = man_node_alloc(man, line, pos, ROFFT_ELEM, tok); |
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man_node_append(man, p); |
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man->next = ROFF_NEXT_CHILD; |
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} |
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void |
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man_head_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *p; |
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p = man_node_alloc(man, line, pos, ROFFT_HEAD, tok); |
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man_node_append(man, p); |
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man->next = ROFF_NEXT_CHILD; |
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} |
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void |
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man_body_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *p; |
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p = man_node_alloc(man, line, pos, ROFFT_BODY, tok); |
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man_node_append(man, p); |
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man->next = ROFF_NEXT_CHILD; |
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} |
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void |
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man_block_alloc(struct roff_man *man, int line, int pos, int tok) |
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{ |
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struct roff_node *p; |
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p = man_node_alloc(man, line, pos, ROFFT_BLOCK, tok); |
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man_node_append(man, p); |
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man->next = ROFF_NEXT_CHILD; |
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} |
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void |
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man_word_alloc(struct roff_man *man, int line, int pos, const char *word) |
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{ |
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struct roff_node *n; |
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n = man_node_alloc(man, line, pos, ROFFT_TEXT, MAN_MAX); |
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n->string = roff_strdup(man->roff, word); |
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man_node_append(man, n); |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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void |
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man_word_append(struct roff_man *man, const char *word) |
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{ |
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struct roff_node *n; |
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char *addstr, *newstr; |
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n = man->last; |
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addstr = roff_strdup(man->roff, word); |
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mandoc_asprintf(&newstr, "%s %s", n->string, addstr); |
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free(addstr); |
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free(n->string); |
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n->string = newstr; |
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man->next = ROFF_NEXT_SIBLING; |
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} |
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/* |
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* Free all of the resources held by a node. This does NOT unlink a |
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* node from its context; for that, see man_node_unlink(). |
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*/ |
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static void |
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man_node_free(struct roff_node *p) |
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{ |
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free(p->string); |
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free(p); |
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} |
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void |
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man_node_delete(struct roff_man *man, struct roff_node *p) |
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{ |
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while (p->child) |
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man_node_delete(man, p->child); |
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man_node_unlink(man, p); |
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man_node_free(p); |
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} |
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void |
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man_addeqn(struct roff_man *man, const struct eqn *ep) |
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{ |
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struct roff_node *n; |
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n = man_node_alloc(man, ep->ln, ep->pos, ROFFT_EQN, MAN_MAX); |
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n->eqn = ep; |
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if (ep->ln > man->last->line) |
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n->flags |= MAN_LINE; |
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man_node_append(man, n); |
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man->next = ROFF_NEXT_SIBLING; |
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man_descope(man, ep->ln, ep->pos); |
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} |
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void |
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man_addspan(struct roff_man *man, const struct tbl_span *sp) |
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{ |
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struct roff_node *n; |
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man_breakscope(man, MAN_MAX); |
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n = man_node_alloc(man, sp->line, 0, ROFFT_TBL, MAN_MAX); |
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n->span = sp; |
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man_node_append(man, n); |
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man->next = ROFF_NEXT_SIBLING; |
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man_descope(man, sp->line, 0); |
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} |
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static void |
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man_descope(struct roff_man *man, int line, int offs) |
man_descope(struct roff_man *man, int line, int offs) |
{ |
{ |
/* |
/* |
Line 302 man_descope(struct roff_man *man, int line, int offs) |
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Line 69 man_descope(struct roff_man *man, int line, int offs) |
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return; |
return; |
man->flags &= ~MAN_BLINE; |
man->flags &= ~MAN_BLINE; |
man_unscope(man, man->last->parent); |
man_unscope(man, man->last->parent); |
man_body_alloc(man, line, offs, man->last->tok); |
roff_body_alloc(man, line, offs, man->last->tok); |
} |
} |
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static int |
static int |
Line 313 man_ptext(struct roff_man *man, int line, char *buf, i |
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Line 80 man_ptext(struct roff_man *man, int line, char *buf, i |
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/* Literal free-form text whitespace is preserved. */ |
/* Literal free-form text whitespace is preserved. */ |
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if (man->flags & MAN_LITERAL) { |
if (man->flags & MAN_LITERAL) { |
man_word_alloc(man, line, offs, buf + offs); |
roff_word_alloc(man, line, offs, buf + offs); |
man_descope(man, line, offs); |
man_descope(man, line, offs); |
return(1); |
return 1; |
} |
} |
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for (i = offs; buf[i] == ' '; i++) |
for (i = offs; buf[i] == ' '; i++) |
Line 330 man_ptext(struct roff_man *man, int line, char *buf, i |
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Line 97 man_ptext(struct roff_man *man, int line, char *buf, i |
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/* Allocate a blank entry. */ |
/* Allocate a blank entry. */ |
if (man->last->tok != MAN_SH && |
if (man->last->tok != MAN_SH && |
man->last->tok != MAN_SS) { |
man->last->tok != MAN_SS) { |
man_elem_alloc(man, line, offs, MAN_sp); |
roff_elem_alloc(man, line, offs, ROFF_sp); |
man->next = ROFF_NEXT_SIBLING; |
man->next = ROFF_NEXT_SIBLING; |
} |
} |
return(1); |
return 1; |
} |
} |
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/* |
/* |
Line 357 man_ptext(struct roff_man *man, int line, char *buf, i |
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Line 124 man_ptext(struct roff_man *man, int line, char *buf, i |
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buf[i] = '\0'; |
buf[i] = '\0'; |
} |
} |
man_word_alloc(man, line, offs, buf + offs); |
roff_word_alloc(man, line, offs, buf + offs); |
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/* |
/* |
* End-of-sentence check. If the last character is an unescaped |
* End-of-sentence check. If the last character is an unescaped |
Line 367 man_ptext(struct roff_man *man, int line, char *buf, i |
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Line 134 man_ptext(struct roff_man *man, int line, char *buf, i |
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assert(i); |
assert(i); |
if (mandoc_eos(buf, (size_t)i)) |
if (mandoc_eos(buf, (size_t)i)) |
man->last->flags |= MAN_EOS; |
man->last->flags |= NODE_EOS; |
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man_descope(man, line, offs); |
man_descope(man, line, offs); |
return(1); |
return 1; |
} |
} |
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static int |
static int |
Line 378 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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Line 145 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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{ |
{ |
struct roff_node *n; |
struct roff_node *n; |
const char *cp; |
const char *cp; |
int tok; |
size_t sz; |
int i, ppos; |
enum roff_tok tok; |
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int ppos; |
int bline; |
int bline; |
char mac[5]; |
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ppos = offs; |
/* Determine the line macro. */ |
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/* |
ppos = offs; |
* Copy the first word into a nil-terminated buffer. |
tok = TOKEN_NONE; |
* Stop when a space, tab, escape, or eoln is encountered. |
for (sz = 0; sz < 4 && strchr(" \t\\", buf[offs]) == NULL; sz++) |
*/ |
offs++; |
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if (sz > 0 && sz < 4) |
i = 0; |
tok = roffhash_find(man->manmac, buf + ppos, sz); |
while (i < 4 && strchr(" \t\\", buf[offs]) == NULL) |
if (tok == TOKEN_NONE) { |
mac[i++] = buf[offs++]; |
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mac[i] = '\0'; |
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tok = (i > 0 && i < 4) ? man_hash_find(mac) : MAN_MAX; |
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if (tok == MAN_MAX) { |
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mandoc_msg(MANDOCERR_MACRO, man->parse, |
mandoc_msg(MANDOCERR_MACRO, man->parse, |
ln, ppos, buf + ppos - 1); |
ln, ppos, buf + ppos - 1); |
return(1); |
return 1; |
} |
} |
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/* Skip a leading escape sequence or tab. */ |
/* Skip a leading escape sequence or tab. */ |
Line 421 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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Line 181 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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/* Jump to the next non-whitespace word. */ |
/* Jump to the next non-whitespace word. */ |
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while (buf[offs] && buf[offs] == ' ') |
while (buf[offs] == ' ') |
offs++; |
offs++; |
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/* |
/* |
Line 441 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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Line 201 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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man_breakscope(man, tok); |
man_breakscope(man, tok); |
bline = man->flags & MAN_BLINE; |
bline = man->flags & MAN_BLINE; |
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/* |
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* If the line in next-line scope ends with \c, keep the |
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* next-line scope open for the subsequent input line. |
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* That is not at all portable, only groff >= 1.22.4 |
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* does it, but *if* this weird idiom occurs in a manual |
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* page, that's very likely what the author intended. |
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*/ |
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if (bline) { |
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cp = strchr(buf + offs, '\0') - 2; |
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if (cp >= buf && cp[0] == '\\' && cp[1] == 'c') |
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bline = 0; |
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} |
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/* Call to handler... */ |
/* Call to handler... */ |
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assert(man_macros[tok].fp); |
assert(man_macros[tok].fp); |
Line 452 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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Line 226 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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n = man->last; |
n = man->last; |
if (n->type == ROFFT_BODY && |
if (n->type == ROFFT_BODY && |
strcmp(n->prev->child->string, "NAME")) |
strcmp(n->prev->child->string, "NAME")) |
return(2); |
return 2; |
} |
} |
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/* |
/* |
Line 463 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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Line 237 man_pmacro(struct roff_man *man, int ln, char *buf, in |
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if ( ! bline || man->flags & MAN_ELINE || |
if ( ! bline || man->flags & MAN_ELINE || |
man_macros[tok].flags & MAN_NSCOPED) |
man_macros[tok].flags & MAN_NSCOPED) |
return(1); |
return 1; |
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assert(man->flags & MAN_BLINE); |
assert(man->flags & MAN_BLINE); |
man->flags &= ~MAN_BLINE; |
man->flags &= ~MAN_BLINE; |
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man_unscope(man, man->last->parent); |
man_unscope(man, man->last->parent); |
man_body_alloc(man, ln, ppos, man->last->tok); |
roff_body_alloc(man, ln, ppos, man->last->tok); |
return(1); |
return 1; |
} |
} |
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void |
void |
Line 484 man_breakscope(struct roff_man *man, int tok) |
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Line 258 man_breakscope(struct roff_man *man, int tok) |
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* Delete the element that is being broken. |
* Delete the element that is being broken. |
*/ |
*/ |
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if (man->flags & MAN_ELINE && (tok == MAN_MAX || |
if (man->flags & MAN_ELINE && (tok == TOKEN_NONE || |
! (man_macros[tok].flags & MAN_NSCOPED))) { |
! (man_macros[tok].flags & MAN_NSCOPED))) { |
n = man->last; |
n = man->last; |
assert(n->type != ROFFT_TEXT); |
assert(n->type != ROFFT_TEXT); |
Line 493 man_breakscope(struct roff_man *man, int tok) |
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Line 267 man_breakscope(struct roff_man *man, int tok) |
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mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, |
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, |
n->line, n->pos, "%s breaks %s", |
n->line, n->pos, "%s breaks %s", |
tok == MAN_MAX ? "TS" : man_macronames[tok], |
tok == TOKEN_NONE ? "TS" : roff_name[tok], |
man_macronames[n->tok]); |
roff_name[n->tok]); |
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man_node_delete(man, n); |
roff_node_delete(man, n); |
man->flags &= ~MAN_ELINE; |
man->flags &= ~MAN_ELINE; |
} |
} |
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/* |
/* |
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* Weird special case: |
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* Switching fill mode closes section headers. |
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*/ |
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if (man->flags & MAN_BLINE && |
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(tok == MAN_nf || tok == MAN_fi) && |
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(man->last->tok == MAN_SH || man->last->tok == MAN_SS)) { |
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n = man->last; |
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man_unscope(man, n); |
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roff_body_alloc(man, n->line, n->pos, n->tok); |
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man->flags &= ~MAN_BLINE; |
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} |
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/* |
* A block header next line scope is open, |
* A block header next line scope is open, |
* and the new macro is not allowed inside block headers. |
* and the new macro is not allowed inside block headers. |
* Delete the block that is being broken. |
* Delete the block that is being broken. |
*/ |
*/ |
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if (man->flags & MAN_BLINE && (tok == MAN_MAX || |
if (man->flags & MAN_BLINE && (tok == TOKEN_NONE || |
man_macros[tok].flags & MAN_BSCOPE)) { |
man_macros[tok].flags & MAN_BSCOPE)) { |
n = man->last; |
n = man->last; |
if (n->type == ROFFT_TEXT) |
if (n->type == ROFFT_TEXT) |
Line 521 man_breakscope(struct roff_man *man, int tok) |
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Line 309 man_breakscope(struct roff_man *man, int tok) |
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|
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mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, |
mandoc_vmsg(MANDOCERR_BLK_LINE, man->parse, |
n->line, n->pos, "%s breaks %s", |
n->line, n->pos, "%s breaks %s", |
tok == MAN_MAX ? "TS" : man_macronames[tok], |
tok == TOKEN_NONE ? "TS" : roff_name[tok], |
man_macronames[n->tok]); |
roff_name[n->tok]); |
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man_node_delete(man, n); |
roff_node_delete(man, n); |
man->flags &= ~MAN_BLINE; |
man->flags &= ~MAN_BLINE; |
} |
} |
} |
} |
|
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/* |
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* Unlink a node from its context. If "man" is provided, the last parse |
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* point will also be adjusted accordingly. |
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*/ |
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static void |
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man_node_unlink(struct roff_man *man, struct roff_node *n) |
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{ |
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|
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/* Adjust siblings. */ |
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|
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if (n->prev) |
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n->prev->next = n->next; |
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if (n->next) |
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n->next->prev = n->prev; |
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|
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/* Adjust parent. */ |
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|
if (n->parent) { |
|
n->parent->nchild--; |
|
if (n->parent->child == n) |
|
n->parent->child = n->prev ? n->prev : n->next; |
|
} |
|
|
|
/* Adjust parse point, if applicable. */ |
|
|
|
if (man && man->last == n) { |
|
/*XXX: this can occur when bailing from validation. */ |
|
/*assert(NULL == n->next);*/ |
|
if (n->prev) { |
|
man->last = n->prev; |
|
man->next = ROFF_NEXT_SIBLING; |
|
} else { |
|
man->last = n->parent; |
|
man->next = ROFF_NEXT_CHILD; |
|
} |
|
} |
|
|
|
if (man && man->first == n) |
|
man->first = NULL; |
|
} |
|
|
|
const struct mparse * |
const struct mparse * |
man_mparse(const struct roff_man *man) |
man_mparse(const struct roff_man *man) |
{ |
{ |
|
|
assert(man && man->parse); |
assert(man && man->parse); |
return(man->parse); |
return man->parse; |
} |
} |
|
|
void |
void |
man_deroff(char **dest, const struct roff_node *n) |
man_state(struct roff_man *man, struct roff_node *n) |
{ |
{ |
char *cp; |
|
size_t sz; |
|
|
|
if (n->type != ROFFT_TEXT) { |
switch(n->tok) { |
for (n = n->child; n; n = n->next) |
case MAN_nf: |
man_deroff(dest, n); |
case MAN_EX: |
return; |
if (man->flags & MAN_LITERAL && ! (n->flags & NODE_VALID)) |
|
mandoc_msg(MANDOCERR_NF_SKIP, man->parse, |
|
n->line, n->pos, "nf"); |
|
man->flags |= MAN_LITERAL; |
|
break; |
|
case MAN_fi: |
|
case MAN_EE: |
|
if ( ! (man->flags & MAN_LITERAL) && |
|
! (n->flags & NODE_VALID)) |
|
mandoc_msg(MANDOCERR_FI_SKIP, man->parse, |
|
n->line, n->pos, "fi"); |
|
man->flags &= ~MAN_LITERAL; |
|
break; |
|
default: |
|
break; |
} |
} |
|
man->last->flags |= NODE_VALID; |
|
} |
|
|
/* Skip leading whitespace and escape sequences. */ |
void |
|
man_validate(struct roff_man *man) |
|
{ |
|
|
cp = n->string; |
man->last = man->first; |
while ('\0' != *cp) { |
man_node_validate(man); |
if ('\\' == *cp) { |
man->flags &= ~MAN_LITERAL; |
cp++; |
|
mandoc_escape((const char **)&cp, NULL, NULL); |
|
} else if (isspace((unsigned char)*cp)) |
|
cp++; |
|
else |
|
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; |
|
} |
} |