=================================================================== RCS file: /cvs/mandoc/man_term.c,v retrieving revision 1.226 retrieving revision 1.234 diff -u -p -r1.226 -r1.234 --- mandoc/man_term.c 2019/01/05 00:36:50 1.226 +++ mandoc/man_term.c 2020/02/27 01:43:52 1.234 @@ -1,7 +1,7 @@ -/* $Id: man_term.c,v 1.226 2019/01/05 00:36:50 schwarze Exp $ */ +/* $Id: man_term.c,v 1.234 2020/02/27 01:43:52 schwarze Exp $ */ /* * Copyright (c) 2008-2012 Kristaps Dzonsons - * Copyright (c) 2010-2015, 2017-2019 Ingo Schwarze + * Copyright (c) 2010-2015, 2017-2020 Ingo Schwarze * * Permission to use, copy, modify, and distribute this software for any * purpose with or without fee is hereby granted, provided that the above @@ -27,10 +27,12 @@ #include #include "mandoc_aux.h" +#include "mandoc.h" #include "roff.h" #include "man.h" #include "out.h" #include "term.h" +#include "tag.h" #include "main.h" #define MAXMARGINS 64 /* maximum number of indented scopes */ @@ -62,7 +64,7 @@ static void print_man_head(struct termp *, static void print_man_foot(struct termp *, const struct roff_meta *); static void print_bvspace(struct termp *, - const struct roff_node *, int); + struct roff_node *, int); static int pre_B(DECL_ARGS); static int pre_DT(DECL_ARGS); @@ -88,15 +90,16 @@ static void post_IP(DECL_ARGS); static void post_HP(DECL_ARGS); static void post_RS(DECL_ARGS); static void post_SH(DECL_ARGS); -static void post_SS(DECL_ARGS); static void post_SY(DECL_ARGS); static void post_TP(DECL_ARGS); static void post_UR(DECL_ARGS); +static void tag_man(struct termp *, struct roff_node *); + static const struct man_term_act man_term_acts[MAN_MAX - MAN_TH] = { { NULL, NULL, 0 }, /* TH */ { pre_SH, post_SH, 0 }, /* SH */ - { pre_SS, post_SS, 0 }, /* SS */ + { pre_SS, post_SH, 0 }, /* SS */ { pre_TP, post_TP, 0 }, /* TP */ { pre_TP, post_TP, 0 }, /* TQ */ { pre_abort, NULL, 0 }, /* LP */ @@ -145,9 +148,9 @@ man_term_act(enum roff_tok tok) void terminal_man(void *arg, const struct roff_meta *man) { - struct termp *p; - struct roff_node *n; struct mtermp mt; + struct termp *p; + struct roff_node *n, *nc, *nn; size_t save_defindent; p = (struct termp *)arg; @@ -159,25 +162,30 @@ terminal_man(void *arg, const struct roff_meta *man) term_tab_set(p, "T"); term_tab_set(p, ".5i"); - memset(&mt, 0, sizeof(struct mtermp)); + memset(&mt, 0, sizeof(mt)); mt.lmargin[mt.lmargincur] = term_len(p, p->defindent); mt.offset = term_len(p, p->defindent); mt.pardist = 1; n = man->first->child; if (p->synopsisonly) { - while (n != NULL) { - if (n->tok == MAN_SH && - n->child->child->type == ROFFT_TEXT && - !strcmp(n->child->child->string, "SYNOPSIS")) { - if (n->child->next->child != NULL) - print_man_nodelist(p, &mt, - n->child->next->child, man); - term_newln(p); + for (nn = NULL; n != NULL; n = n->next) { + if (n->tok != MAN_SH) + continue; + nc = n->child->child; + if (nc->type != ROFFT_TEXT) + continue; + if (strcmp(nc->string, "SYNOPSIS") == 0) break; - } - n = n->next; + if (nn == NULL && strcmp(nc->string, "NAME") == 0) + nn = n; } + if (n == NULL) + n = nn; + p->flags |= TERMP_NOSPACE; + if (n != NULL && (n = n->child->next->child) != NULL) + print_man_nodelist(p, &mt, n, man); + term_newln(p); } else { term_begin(p, print_man_head, print_man_foot, man); p->flags |= TERMP_NOSPACE; @@ -197,19 +205,20 @@ terminal_man(void *arg, const struct roff_meta *man) * first, print it. */ static void -print_bvspace(struct termp *p, const struct roff_node *n, int pardist) +print_bvspace(struct termp *p, struct roff_node *n, int pardist) { - int i; + struct roff_node *nch; + int i; term_newln(p); - if (n->body && n->body->child) - if (n->body->child->type == ROFFT_TBL) - return; + if (n->body != NULL && + (nch = roff_node_child(n->body)) != NULL && + nch->type == ROFFT_TBL) + return; - if (n->parent->type == ROFFT_ROOT || n->parent->tok != MAN_RS) - if (NULL == n->prev) - return; + if (n->parent->tok != MAN_RS && roff_node_prev(n) == NULL) + return; for (i = 0; i < pardist; i++) term_vspace(p); @@ -225,14 +234,12 @@ pre_abort(DECL_ARGS) static int pre_ign(DECL_ARGS) { - return 0; } static int pre_I(DECL_ARGS) { - term_fontrepl(p, TERMFONT_UNDER); return 1; } @@ -313,8 +320,8 @@ pre_alternate(DECL_ARGS) assert(nn->type == ROFFT_TEXT); term_word(p, nn->string); if (nn->flags & NODE_EOS) - p->flags |= TERMP_SENTENCE; - if (nn->next) + p->flags |= TERMP_SENTENCE; + if (nn->next != NULL) p->flags |= TERMP_NOSPACE; } return 0; @@ -323,7 +330,6 @@ pre_alternate(DECL_ARGS) static int pre_B(DECL_ARGS) { - term_fontrepl(p, TERMFONT_BOLD); return 1; } @@ -331,19 +337,17 @@ pre_B(DECL_ARGS) static int pre_OP(DECL_ARGS) { - term_word(p, "["); p->flags |= TERMP_KEEP | TERMP_NOSPACE; - if (NULL != (n = n->child)) { + if ((n = n->child) != NULL) { term_fontrepl(p, TERMFONT_BOLD); term_word(p, n->string); } - if (NULL != n && NULL != n->next) { + if (n != NULL && n->next != NULL) { term_fontrepl(p, TERMFONT_UNDER); term_word(p, n->next->string); } - term_fontrepl(p, TERMFONT_NONE); p->flags &= ~TERMP_KEEP; p->flags |= TERMP_NOSPACE; @@ -369,9 +373,9 @@ pre_in(DECL_ARGS) cp = n->child->string; less = 0; - if ('-' == *cp) + if (*cp == '-') less = -1; - else if ('+' == *cp) + else if (*cp == '+') less = 1; else cp--; @@ -413,10 +417,12 @@ pre_HP(DECL_ARGS) case ROFFT_BLOCK: print_bvspace(p, n, mt->pardist); return 1; + case ROFFT_HEAD: + return 0; case ROFFT_BODY: break; default: - return 0; + abort(); } if (n->child == NULL) @@ -448,8 +454,10 @@ pre_HP(DECL_ARGS) static void post_HP(DECL_ARGS) { - switch (n->type) { + case ROFFT_BLOCK: + case ROFFT_HEAD: + break; case ROFFT_BODY: term_newln(p); @@ -469,25 +477,27 @@ post_HP(DECL_ARGS) p->tcol->rmargin = p->maxrmargin; break; default: - break; + abort(); } } static int pre_PP(DECL_ARGS) { - switch (n->type) { case ROFFT_BLOCK: mt->lmargin[mt->lmargincur] = term_len(p, p->defindent); print_bvspace(p, n, mt->pardist); break; - default: + case ROFFT_HEAD: + return 0; + case ROFFT_BODY: p->tcol->offset = mt->offset; break; + default: + abort(); } - - return n->type != ROFFT_HEAD; + return 1; } static int @@ -498,18 +508,18 @@ pre_IP(DECL_ARGS) int len; switch (n->type) { - case ROFFT_BODY: - p->flags |= TERMP_NOSPACE; - break; + case ROFFT_BLOCK: + print_bvspace(p, n, mt->pardist); + return 1; case ROFFT_HEAD: p->flags |= TERMP_NOBREAK; p->trailspace = 1; break; - case ROFFT_BLOCK: - print_bvspace(p, n, mt->pardist); - /* FALLTHROUGH */ + case ROFFT_BODY: + p->flags |= TERMP_NOSPACE; + break; default: - return 1; + abort(); } /* Calculate the offset from the optional second argument. */ @@ -529,15 +539,17 @@ pre_IP(DECL_ARGS) case ROFFT_HEAD: p->tcol->offset = mt->offset; p->tcol->rmargin = mt->offset + len; - if (n->child) + if (n->child != NULL) { print_man_node(p, mt, n->child, meta); + tag_man(p, n->child); + } return 0; case ROFFT_BODY: p->tcol->offset = mt->offset + len; p->tcol->rmargin = p->maxrmargin; break; default: - break; + abort(); } return 1; } @@ -546,6 +558,8 @@ static void post_IP(DECL_ARGS) { switch (n->type) { + case ROFFT_BLOCK: + break; case ROFFT_HEAD: term_flushln(p); p->flags &= ~TERMP_NOBREAK; @@ -557,7 +571,7 @@ post_IP(DECL_ARGS) p->tcol->offset = mt->offset; break; default: - break; + abort(); } } @@ -569,6 +583,10 @@ pre_TP(DECL_ARGS) int len; switch (n->type) { + case ROFFT_BLOCK: + if (n->tok == MAN_TP) + print_bvspace(p, n, mt->pardist); + return 1; case ROFFT_HEAD: p->flags |= TERMP_NOBREAK | TERMP_BRTRSP; p->trailspace = 1; @@ -576,12 +594,8 @@ pre_TP(DECL_ARGS) case ROFFT_BODY: p->flags |= TERMP_NOSPACE; break; - case ROFFT_BLOCK: - if (n->tok == MAN_TP) - print_bvspace(p, n, mt->pardist); - /* FALLTHROUGH */ default: - return 1; + abort(); } /* Calculate offset. */ @@ -605,10 +619,22 @@ pre_TP(DECL_ARGS) /* Don't print same-line elements. */ nn = n->child; - while (NULL != nn && 0 == (NODE_LINE & nn->flags)) + while (nn != NULL && (nn->flags & NODE_LINE) == 0) nn = nn->next; - while (NULL != nn) { + if (nn == NULL) + return 0; + + if (nn->type == ROFFT_TEXT) + tag_man(p, nn); + else if (nn->child != NULL && + nn->child->type == ROFFT_TEXT && + (nn->tok == MAN_B || nn->tok == MAN_BI || + nn->tok == MAN_BR || nn->tok == MAN_I || + nn->tok == MAN_IB || nn->tok == MAN_IR)) + tag_man(p, nn->child); + + while (nn != NULL) { print_man_node(p, mt, nn, meta); nn = nn->next; } @@ -620,7 +646,7 @@ pre_TP(DECL_ARGS) p->flags &= ~(TERMP_NOBREAK | TERMP_BRTRSP); break; default: - break; + abort(); } return 1; } @@ -629,6 +655,8 @@ static void post_TP(DECL_ARGS) { switch (n->type) { + case ROFFT_BLOCK: + break; case ROFFT_HEAD: term_flushln(p); break; @@ -637,7 +665,7 @@ post_TP(DECL_ARGS) p->tcol->offset = mt->offset; break; default: - break; + abort(); } } @@ -656,12 +684,8 @@ pre_SS(DECL_ARGS) * and after an empty subsection. */ - do { - n = n->prev; - } while (n != NULL && n->tok >= MAN_TH && - man_term_act(n->tok)->flags & MAN_NOTEXT); - if (n == NULL || n->type == ROFFT_COMMENT || - (n->tok == MAN_SS && n->body->child == NULL)) + if ((n = roff_node_prev(n)) == NULL || + (n->tok == MAN_SS && roff_node_child(n->body) == NULL)) break; for (i = 0; i < mt->pardist; i++) @@ -683,26 +707,9 @@ pre_SS(DECL_ARGS) default: break; } - return 1; } -static void -post_SS(DECL_ARGS) -{ - - switch (n->type) { - case ROFFT_HEAD: - term_newln(p); - break; - case ROFFT_BODY: - term_newln(p); - break; - default: - break; - } -} - static int pre_SH(DECL_ARGS) { @@ -718,12 +725,8 @@ pre_SH(DECL_ARGS) * and after an empty section. */ - do { - n = n->prev; - } while (n != NULL && n->tok >= MAN_TH && - man_term_act(n->tok)->flags & MAN_NOTEXT); - if (n == NULL || n->type == ROFFT_COMMENT || - (n->tok == MAN_SH && n->body->child == NULL)) + if ((n = roff_node_prev(n)) == NULL || + (n->tok == MAN_SH && roff_node_child(n->body) == NULL)) break; for (i = 0; i < mt->pardist; i++) @@ -743,25 +746,23 @@ pre_SH(DECL_ARGS) p->flags &= ~(TERMP_NOBREAK | TERMP_BRIND); break; default: - break; + abort(); } - return 1; } static void post_SH(DECL_ARGS) { - switch (n->type) { - case ROFFT_HEAD: - term_newln(p); + case ROFFT_BLOCK: break; + case ROFFT_HEAD: case ROFFT_BODY: term_newln(p); break; default: - break; + abort(); } } @@ -776,8 +777,10 @@ pre_RS(DECL_ARGS) return 1; case ROFFT_HEAD: return 0; - default: + case ROFFT_BODY: break; + default: + abort(); } n = n->parent->head; @@ -805,20 +808,18 @@ pre_RS(DECL_ARGS) static void post_RS(DECL_ARGS) { - switch (n->type) { case ROFFT_BLOCK: - return; case ROFFT_HEAD: return; - default: - term_newln(p); + case ROFFT_BODY: break; + default: + abort(); } - + term_newln(p); mt->offset -= n->parent->head->aux; p->tcol->offset = mt->offset; - if (--mt->lmarginsz < MAXMARGINS) mt->lmargincur = mt->lmarginsz; } @@ -831,7 +832,7 @@ pre_SY(DECL_ARGS) switch (n->type) { case ROFFT_BLOCK: - if (n->prev == NULL || n->prev->tok != MAN_SY) + if ((nn = roff_node_prev(n)) == NULL || nn->tok != MAN_SY) print_bvspace(p, n, mt->pardist); return 1; case ROFFT_HEAD: @@ -848,7 +849,9 @@ pre_SY(DECL_ARGS) case ROFFT_HEAD: p->tcol->offset = mt->offset; p->tcol->rmargin = mt->offset + len; - p->flags |= TERMP_NOBREAK; + if (n->next->child == NULL || + (n->next->child->flags & NODE_NOFILL) == 0) + p->flags |= TERMP_NOBREAK; term_fontrepl(p, TERMFONT_BOLD); break; case ROFFT_BODY: @@ -867,6 +870,8 @@ static void post_SY(DECL_ARGS) { switch (n->type) { + case ROFFT_BLOCK: + break; case ROFFT_HEAD: term_flushln(p); p->flags &= ~TERMP_NOBREAK; @@ -876,28 +881,26 @@ post_SY(DECL_ARGS) p->tcol->offset = mt->offset; break; default: - break; + abort(); } } static int pre_UR(DECL_ARGS) { - return n->type != ROFFT_HEAD; } static void post_UR(DECL_ARGS) { - if (n->type != ROFFT_BLOCK) return; term_word(p, "<"); p->flags |= TERMP_NOSPACE; - if (NULL != n->child->child) + if (n->child->child != NULL) print_man_node(p, mt, n->child->child, meta); p->flags |= TERMP_NOSPACE; @@ -962,7 +965,7 @@ print_man_node(DECL_ARGS) if (act->pre != NULL) c = (*act->pre)(p, mt, n, meta); - if (c && n->child) + if (c && n->child != NULL) print_man_nodelist(p, mt, n->child, meta); if (act->post != NULL) @@ -993,15 +996,13 @@ out: p->tcol->rmargin = p->maxrmargin; } } - if (NODE_EOS & n->flags) + if (n->flags & NODE_EOS) p->flags |= TERMP_SENTENCE; } - static void print_man_nodelist(DECL_ARGS) { - while (n != NULL) { print_man_node(p, mt, n, meta); n = n->next; @@ -1036,7 +1037,7 @@ print_man_foot(struct termp *p, const struct roff_meta } mandoc_asprintf(&title, "%s(%s)", meta->title, meta->msec); - } else if (meta->os) { + } else if (meta->os != NULL) { title = mandoc_strdup(meta->os); } else { title = mandoc_strdup(""); @@ -1157,4 +1158,61 @@ print_man_head(struct termp *p, const struct roff_meta term_vspace(p); } free(title); +} + +/* + * Skip leading whitespace, dashes, backslashes, and font escapes, + * then create a tag if the first following byte is a letter. + * Priority is high unless whitespace is present. + */ +static void +tag_man(struct termp *p, struct roff_node *n) +{ + const char *cp, *arg; + int prio, sz; + + assert(n->type == ROFFT_TEXT); + cp = n->string; + prio = TAG_STRONG; + for (;;) { + switch (*cp) { + case ' ': + case '\t': + prio = TAG_WEAK; + /* FALLTHROUGH */ + case '-': + cp++; + break; + case '\\': + cp++; + switch (mandoc_escape(&cp, &arg, &sz)) { + case ESCAPE_FONT: + case ESCAPE_FONTROMAN: + case ESCAPE_FONTITALIC: + case ESCAPE_FONTBOLD: + case ESCAPE_FONTPREV: + case ESCAPE_FONTBI: + break; + case ESCAPE_SPECIAL: + if (sz != 1) + return; + switch (*arg) { + case '&': + case '-': + case 'e': + break; + default: + return; + } + break; + default: + return; + } + break; + default: + if (isalpha((unsigned char)*cp)) + tag_put(cp, prio, p->line); + return; + } + } }