=================================================================== RCS file: /cvs/mandoc/man_term.c,v retrieving revision 1.81 retrieving revision 1.94 diff -u -p -r1.81 -r1.94 --- mandoc/man_term.c 2010/07/22 13:36:25 1.81 +++ mandoc/man_term.c 2011/01/04 01:23:18 1.94 @@ -1,6 +1,7 @@ -/* $Id: man_term.c,v 1.81 2010/07/22 13:36:25 kristaps Exp $ */ +/* $Id: man_term.c,v 1.94 2011/01/04 01:23:18 schwarze Exp $ */ /* * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2010, 2011 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 @@ -80,23 +81,21 @@ static void print_man_foot(struct termp *, const vo static void print_bvspace(struct termp *, const struct man_node *); +static int pre_alternate(DECL_ARGS); static int pre_B(DECL_ARGS); -static int pre_BI(DECL_ARGS); static int pre_HP(DECL_ARGS); static int pre_I(DECL_ARGS); static int pre_IP(DECL_ARGS); static int pre_PP(DECL_ARGS); -static int pre_RB(DECL_ARGS); -static int pre_RI(DECL_ARGS); static int pre_RS(DECL_ARGS); static int pre_SH(DECL_ARGS); static int pre_SS(DECL_ARGS); static int pre_TP(DECL_ARGS); -static int pre_br(DECL_ARGS); -static int pre_fi(DECL_ARGS); static int pre_ign(DECL_ARGS); -static int pre_nf(DECL_ARGS); +static int pre_in(DECL_ARGS); +static int pre_literal(DECL_ARGS); static int pre_sp(DECL_ARGS); +static int pre_ft(DECL_ARGS); static void post_IP(DECL_ARGS); static void post_HP(DECL_ARGS); @@ -106,7 +105,7 @@ static void post_SS(DECL_ARGS); static void post_TP(DECL_ARGS); static const struct termact termacts[MAN_MAX] = { - { pre_br, NULL, MAN_NOTEXT }, /* br */ + { pre_sp, NULL, MAN_NOTEXT }, /* br */ { NULL, NULL, 0 }, /* TH */ { pre_SH, post_SH, 0 }, /* SH */ { pre_SS, post_SS, 0 }, /* SS */ @@ -118,30 +117,27 @@ static const struct termact termacts[MAN_MAX] = { { pre_HP, post_HP, 0 }, /* HP */ { NULL, NULL, 0 }, /* SM */ { pre_B, NULL, 0 }, /* SB */ - { pre_BI, NULL, 0 }, /* BI */ - { pre_BI, NULL, 0 }, /* IB */ - { pre_RB, NULL, 0 }, /* BR */ - { pre_RB, NULL, 0 }, /* RB */ + { pre_alternate, NULL, 0 }, /* BI */ + { pre_alternate, NULL, 0 }, /* IB */ + { pre_alternate, NULL, 0 }, /* BR */ + { pre_alternate, NULL, 0 }, /* RB */ { NULL, NULL, 0 }, /* R */ { pre_B, NULL, 0 }, /* B */ { pre_I, NULL, 0 }, /* I */ - { pre_RI, NULL, 0 }, /* IR */ - { pre_RI, NULL, 0 }, /* RI */ + { pre_alternate, NULL, 0 }, /* IR */ + { pre_alternate, NULL, 0 }, /* RI */ { NULL, NULL, MAN_NOTEXT }, /* na */ - { pre_I, NULL, 0 }, /* i */ { pre_sp, NULL, MAN_NOTEXT }, /* sp */ - { pre_nf, NULL, 0 }, /* nf */ - { pre_fi, NULL, 0 }, /* fi */ - { NULL, NULL, 0 }, /* r */ + { pre_literal, NULL, 0 }, /* nf */ + { pre_literal, NULL, 0 }, /* fi */ { NULL, NULL, 0 }, /* RE */ { pre_RS, post_RS, 0 }, /* RS */ { pre_ign, NULL, 0 }, /* DT */ { pre_ign, NULL, 0 }, /* UC */ { pre_ign, NULL, 0 }, /* PD */ - { pre_sp, NULL, MAN_NOTEXT }, /* Sp */ - { pre_nf, NULL, 0 }, /* Vb */ - { pre_fi, NULL, 0 }, /* Ve */ { pre_ign, NULL, 0 }, /* AT */ + { pre_in, NULL, MAN_NOTEXT }, /* in */ + { pre_ft, NULL, MAN_NOTEXT }, /* ft */ }; @@ -249,107 +245,159 @@ pre_I(DECL_ARGS) /* ARGSUSED */ static int -pre_fi(DECL_ARGS) +pre_literal(DECL_ARGS) { term_newln(p); - mt->fl &= ~MANT_LITERAL; - return(1); -} + if (MAN_nf == n->tok) + mt->fl |= MANT_LITERAL; + else + mt->fl &= ~MANT_LITERAL; -/* ARGSUSED */ -static int -pre_nf(DECL_ARGS) -{ - - term_newln(p); - mt->fl |= MANT_LITERAL; - return(MAN_Vb != n->tok); + return(1); } - /* ARGSUSED */ static int -pre_RB(DECL_ARGS) +pre_alternate(DECL_ARGS) { - const struct man_node *nn; - int i; + enum termfont font[2]; + const struct man_node *nn; + int savelit, i; - for (i = 0, nn = n->child; nn; nn = nn->next, i++) { - if (i % 2 && MAN_RB == n->tok) - term_fontrepl(p, TERMFONT_BOLD); - else if ( ! (i % 2) && MAN_RB != n->tok) - term_fontrepl(p, TERMFONT_BOLD); - else - term_fontrepl(p, TERMFONT_NONE); + switch (n->tok) { + case (MAN_RB): + font[0] = TERMFONT_NONE; + font[1] = TERMFONT_BOLD; + break; + case (MAN_RI): + font[0] = TERMFONT_NONE; + font[1] = TERMFONT_UNDER; + break; + case (MAN_BR): + font[0] = TERMFONT_BOLD; + font[1] = TERMFONT_NONE; + break; + case (MAN_BI): + font[0] = TERMFONT_BOLD; + font[1] = TERMFONT_UNDER; + break; + case (MAN_IR): + font[0] = TERMFONT_UNDER; + font[1] = TERMFONT_NONE; + break; + case (MAN_IB): + font[0] = TERMFONT_UNDER; + font[1] = TERMFONT_BOLD; + break; + default: + abort(); + } - if (i > 0) - p->flags |= TERMP_NOSPACE; + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + for (i = 0, nn = n->child; nn; nn = nn->next, i = 1 - i) { + term_fontrepl(p, font[i]); + if (savelit && NULL == nn->next) + mt->fl |= MANT_LITERAL; print_man_node(p, mt, nn, m); + if (nn->next) + p->flags |= TERMP_NOSPACE; } + return(0); } - /* ARGSUSED */ static int -pre_RI(DECL_ARGS) +pre_B(DECL_ARGS) { - const struct man_node *nn; - int i; - for (i = 0, nn = n->child; nn; nn = nn->next, i++) { - if (i % 2 && MAN_RI == n->tok) - term_fontrepl(p, TERMFONT_UNDER); - else if ( ! (i % 2) && MAN_RI != n->tok) - term_fontrepl(p, TERMFONT_UNDER); - else - term_fontrepl(p, TERMFONT_NONE); - - if (i > 0) - p->flags |= TERMP_NOSPACE; - - print_man_node(p, mt, nn, m); - } - return(0); + term_fontrepl(p, TERMFONT_BOLD); + return(1); } - /* ARGSUSED */ static int -pre_BI(DECL_ARGS) +pre_ft(DECL_ARGS) { - const struct man_node *nn; - int i; + const char *cp; - for (i = 0, nn = n->child; nn; nn = nn->next, i++) { - if (i % 2 && MAN_BI == n->tok) - term_fontrepl(p, TERMFONT_UNDER); - else if (i % 2) - term_fontrepl(p, TERMFONT_BOLD); - else if (MAN_BI == n->tok) - term_fontrepl(p, TERMFONT_BOLD); - else - term_fontrepl(p, TERMFONT_UNDER); + if (NULL == n->child) { + term_fontlast(p); + return(0); + } - if (i) - p->flags |= TERMP_NOSPACE; - - print_man_node(p, mt, nn, m); + cp = n->child->string; + switch (*cp) { + case ('4'): + /* FALLTHROUGH */ + case ('3'): + /* FALLTHROUGH */ + case ('B'): + term_fontrepl(p, TERMFONT_BOLD); + break; + case ('2'): + /* FALLTHROUGH */ + case ('I'): + term_fontrepl(p, TERMFONT_UNDER); + break; + case ('P'): + term_fontlast(p); + break; + case ('1'): + /* FALLTHROUGH */ + case ('C'): + /* FALLTHROUGH */ + case ('R'): + term_fontrepl(p, TERMFONT_NONE); + break; + default: + break; } return(0); } - /* ARGSUSED */ static int -pre_B(DECL_ARGS) +pre_in(DECL_ARGS) { + int len, less; + size_t v; + const char *cp; - term_fontrepl(p, TERMFONT_BOLD); - return(1); + term_newln(p); + + if (NULL == n->child) { + p->offset = mt->offset; + return(0); + } + + cp = n->child->string; + less = 0; + + if ('-' == *cp) + less = -1; + else if ('+' == *cp) + less = 1; + else + cp--; + + if ((len = a2width(p, ++cp)) < 0) + return(0); + + v = (size_t)len; + + if (less < 0) + p->offset -= p->offset > v ? v : p->offset; + else if (less > 0) + p->offset += v; + else + p->offset = v; + + return(0); } @@ -359,12 +407,18 @@ pre_sp(DECL_ARGS) { size_t i, len; - len = n->child ? - a2height(p, n->child->string) : term_len(p, 1); + switch (n->tok) { + case (MAN_br): + len = 0; + break; + default: + len = n->child ? a2height(p, n->child->string) : 1; + break; + } if (0 == len) term_newln(p); - for (i = 0; i <= len; i++) + for (i = 0; i < len; i++) term_vspace(p); return(0); @@ -373,16 +427,6 @@ pre_sp(DECL_ARGS) /* ARGSUSED */ static int -pre_br(DECL_ARGS) -{ - - term_newln(p); - return(0); -} - - -/* ARGSUSED */ -static int pre_HP(DECL_ARGS) { size_t len; @@ -460,7 +504,7 @@ pre_PP(DECL_ARGS) break; } - return(1); + return(MAN_HEAD != n->type); } @@ -470,7 +514,7 @@ pre_IP(DECL_ARGS) { const struct man_node *nn; size_t len; - int ival; + int savelit, ival; switch (n->type) { case (MAN_BODY): @@ -490,15 +534,11 @@ pre_IP(DECL_ARGS) len = mt->lmargin; ival = -1; - /* Calculate offset. */ - + /* Calculate the offset from the optional second argument. */ if (NULL != (nn = n->parent->head->child)) - if (NULL != (nn = nn->next)) { - for ( ; nn->next; nn = nn->next) - /* Do nothing. */ ; + if (NULL != (nn = nn->next)) if ((ival = a2width(p, nn->string)) >= 0) len = (size_t)ival; - } switch (n->type) { case (MAN_HEAD): @@ -514,9 +554,15 @@ pre_IP(DECL_ARGS) /* Set the saved left-margin. */ mt->lmargin = (size_t)ival; - /* Don't print the length value. */ - for (nn = n->child; nn->next; nn = nn->next) - print_man_node(p, mt, nn, m); + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + + if (n->child) + print_man_node(p, mt, n->child, m); + + if (savelit) + mt->fl |= MANT_LITERAL; + return(0); case (MAN_BODY): p->offset = mt->offset + len; @@ -542,7 +588,7 @@ post_IP(DECL_ARGS) p->rmargin = p->maxrmargin; break; case (MAN_BODY): - term_flushln(p); + term_newln(p); p->flags &= ~TERMP_NOLPAD; break; default: @@ -557,12 +603,11 @@ pre_TP(DECL_ARGS) { const struct man_node *nn; size_t len; - int ival; + int savelit, ival; switch (n->type) { case (MAN_HEAD): p->flags |= TERMP_NOBREAK; - p->flags |= TERMP_TWOSPACE; break; case (MAN_BODY): p->flags |= TERMP_NOLPAD; @@ -597,11 +642,17 @@ pre_TP(DECL_ARGS) p->offset = mt->offset; p->rmargin = mt->offset + len; + savelit = MANT_LITERAL & mt->fl; + mt->fl &= ~MANT_LITERAL; + /* Don't print same-line elements. */ - for (nn = n->child; nn; nn = nn->next) + for (nn = n->child; nn; nn = nn->next) if (nn->line > n->line) print_man_node(p, mt, nn, m); + if (savelit) + mt->fl |= MANT_LITERAL; + if (ival >= 0) mt->lmargin = (size_t)ival; @@ -631,7 +682,7 @@ post_TP(DECL_ARGS) p->rmargin = p->maxrmargin; break; case (MAN_BODY): - term_flushln(p); + term_newln(p); p->flags &= ~TERMP_NOLPAD; break; default: @@ -818,10 +869,16 @@ print_man_node(DECL_ARGS) p->rmargin = p->maxrmargin = TERM_MAXMARGIN; p->flags |= TERMP_NOSPACE; term_flushln(p); + p->flags &= ~TERMP_NOLPAD; p->rmargin = rm; p->maxrmargin = rmax; } break; + case (MAN_TBL): + if (TBL_SPAN_FIRST & n->span->flags) + term_newln(p); + term_tbl(p, n->span); + break; default: if ( ! (MAN_NOTEXT & termacts[n->tok].flags)) term_fontrepl(p, TERMFONT_NONE); @@ -833,11 +890,17 @@ print_man_node(DECL_ARGS) if (c && n->child) print_man_nodelist(p, mt, n->child, m); - if (MAN_TEXT != n->type) { + switch (n->type) { + case (MAN_TEXT): + /* FALLTHROUGH */ + case (MAN_TBL): + break; + default: if (termacts[n->tok].post) (*termacts[n->tok].post)(p, mt, n, m); if ( ! (MAN_NOTEXT & termacts[n->tok].flags)) term_fontrepl(p, TERMFONT_NONE); + break; } if (MAN_EOS & n->flags) @@ -878,6 +941,10 @@ print_man_foot(struct termp *p, const void *arg) p->flags |= TERMP_NOSPACE | TERMP_NOBREAK; p->rmargin = p->maxrmargin - term_strlen(p, buf); p->offset = 0; + + /* term_strlen() can return zero. */ + if (p->rmargin == p->maxrmargin) + p->rmargin--; if (meta->source) term_word(p, meta->source);