=================================================================== RCS file: /cvs/mandoc/mdoc_macro.c,v retrieving revision 1.86 retrieving revision 1.110 diff -u -p -r1.86 -r1.110 --- mandoc/mdoc_macro.c 2010/06/30 04:05:02 1.86 +++ mandoc/mdoc_macro.c 2011/08/10 14:07:23 1.110 @@ -1,6 +1,7 @@ -/* $Id: mdoc_macro.c,v 1.86 2010/06/30 04:05:02 schwarze Exp $ */ +/* $Id: mdoc_macro.c,v 1.110 2011/08/10 14:07:23 kristaps Exp $ */ /* - * Copyright (c) 2008, 2009 Kristaps Dzonsons + * Copyright (c) 2008, 2009, 2010 Kristaps Dzonsons + * Copyright (c) 2010 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 @@ -25,6 +26,7 @@ #include #include +#include "mdoc.h" #include "mandoc.h" #include "libmdoc.h" #include "libmandoc.h" @@ -33,8 +35,9 @@ enum rew { /* see rew_dohalt() */ REWIND_NONE, REWIND_THIS, REWIND_MORE, + REWIND_FORCE, REWIND_LATER, - REWIND_ERROR, + REWIND_ERROR }; static int blk_full(MACRO_PROT_ARGS); @@ -48,6 +51,8 @@ static int in_line(MACRO_PROT_ARGS); static int obsolete(MACRO_PROT_ARGS); static int phrase_ta(MACRO_PROT_ARGS); +static int dword(struct mdoc *, int, int, + const char *, enum mdelim); static int append_delims(struct mdoc *, int, int *, char *); static enum mdoct lookup(enum mdoct, const char *); @@ -69,8 +74,8 @@ const struct mdoc_macro __mdoc_macros[MDOC_MAX] = { { in_line_eoln, MDOC_PROLOGUE }, /* Dd */ { in_line_eoln, MDOC_PROLOGUE }, /* Dt */ { in_line_eoln, MDOC_PROLOGUE }, /* Os */ - { blk_full, 0 }, /* Sh */ - { blk_full, 0 }, /* Ss */ + { blk_full, MDOC_PARSED }, /* Sh */ + { blk_full, MDOC_PARSED }, /* Ss */ { in_line_eoln, 0 }, /* Pp */ { blk_part_imp, MDOC_PARSED }, /* D1 */ { blk_part_imp, MDOC_PARSED }, /* Dl */ @@ -97,7 +102,7 @@ const struct mdoc_macro __mdoc_macros[MDOC_MAX] = { { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* In */ { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Li */ { blk_full, 0 }, /* Nd */ - { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */ + { ctx_synopsis, MDOC_CALLABLE | MDOC_PARSED }, /* Nm */ { blk_part_imp, MDOC_CALLABLE | MDOC_PARSED }, /* Op */ { obsolete, 0 }, /* Ot */ { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Pa */ @@ -137,8 +142,8 @@ const struct mdoc_macro __mdoc_macros[MDOC_MAX] = { { blk_part_exp, MDOC_CALLABLE | MDOC_PARSED | MDOC_EXPLICIT }, /* Eo */ { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Fx */ { in_line, MDOC_CALLABLE | MDOC_PARSED }, /* Ms */ - { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* No */ - { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ns */ + { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* No */ + { in_line_argn, MDOC_CALLABLE | MDOC_PARSED | MDOC_IGNDELIM }, /* Ns */ { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Nx */ { in_line_argn, MDOC_CALLABLE | MDOC_PARSED }, /* Ox */ { blk_exp_close, MDOC_EXPLICIT | MDOC_CALLABLE | MDOC_PARSED }, /* Pc */ @@ -206,14 +211,10 @@ mdoc_macroend(struct mdoc *m) n = MDOC_VALID & m->last->flags ? m->last->parent : m->last; - for ( ; n; n = n->parent) { - if (MDOC_BLOCK != n->type) - continue; - if ( ! (MDOC_EXPLICIT & mdoc_macros[n->tok].flags)) - continue; - mdoc_nmsg(m, n, MANDOCERR_SYNTSCOPE); - return(0); - } + for ( ; n; n = n->parent) + if (MDOC_BLOCK == n->type && + MDOC_EXPLICIT & mdoc_macros[n->tok].flags) + mdoc_nmsg(m, n, MANDOCERR_SCOPEEXIT); /* Rewind to the first. */ @@ -254,23 +255,29 @@ lookup_raw(const char *p) static int rew_last(struct mdoc *mdoc, const struct mdoc_node *to) { + struct mdoc_node *n, *np; assert(to); mdoc->next = MDOC_NEXT_SIBLING; /* LINTED */ while (mdoc->last != to) { + /* + * Save the parent here, because we may delete the + * m->last node in the post-validation phase and reset + * it to m->last->parent, causing a step in the closing + * out to be lost. + */ + np = mdoc->last->parent; if ( ! mdoc_valid_post(mdoc)) return(0); - if ( ! mdoc_action_post(mdoc)) - return(0); - mdoc->last = mdoc->last->parent; + n = mdoc->last; + mdoc->last = np; assert(mdoc->last); + mdoc->last->last = n; } - if ( ! mdoc_valid_post(mdoc)) - return(0); - return(mdoc_action_post(mdoc)); + return(mdoc_valid_post(mdoc)); } @@ -327,6 +334,7 @@ rew_alt(enum mdoct tok) * inside *p, so there is no need to rewind anything at all. * REWIND_THIS: *p matches tok, so rewind *p and nothing else. * REWIND_MORE: *p is implicit, rewind it and keep searching for tok. + * REWIND_FORCE: *p is explicit, but tok is full, force rewinding *p. * REWIND_LATER: *p is explicit and still open, postpone rewinding. * REWIND_ERROR: No tok block is open at all. */ @@ -392,6 +400,8 @@ rew_dohalt(enum mdoct tok, enum mdoc_type type, if (MDOC_Op == p->tok) return(REWIND_MORE); break; + case (MDOC_Nm): + return(REWIND_NONE); case (MDOC_Nd): /* FALLTHROUGH */ case (MDOC_Ss): @@ -409,23 +419,22 @@ rew_dohalt(enum mdoct tok, enum mdoc_type type, /* * Default block rewinding rules. - * In particular, always skip block end markers. + * In particular, always skip block end markers, + * and let all blocks rewind Nm children. */ - if (p->end || (MDOC_BLOCK == p->type && + if (ENDBODY_NOT != p->end || MDOC_Nm == p->tok || + (MDOC_BLOCK == p->type && ! (MDOC_EXPLICIT & mdoc_macros[tok].flags))) return(REWIND_MORE); /* - * Partial blocks allow delayed rewinding by default. + * By default, closing out full blocks + * forces closing of broken explicit blocks, + * while closing out partial blocks + * allows delayed rewinding by default. */ - if (&blk_full != mdoc_macros[tok].fp) - return (REWIND_LATER); - - /* - * Full blocks can only be rewound when matching - * or when there is an explicit rule. - */ - return(REWIND_ERROR); + return (&blk_full == mdoc_macros[tok].fp ? + REWIND_FORCE : REWIND_LATER); } @@ -507,17 +516,16 @@ make_pending(struct mdoc_node *broken, enum mdoct tok, taker->pending = broken->pending; } broken->pending = breaker; - mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, "%s breaks %s", - mdoc_macronames[tok], mdoc_macronames[broken->tok]); + mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos, + "%s breaks %s", mdoc_macronames[tok], + mdoc_macronames[broken->tok]); return(1); } /* * Found no matching block for tok. * Are you trying to close a block that is not open? - * XXX Make this non-fatal. */ - mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE); return(0); } @@ -535,15 +543,23 @@ rew_sub(enum mdoc_type t, struct mdoc *m, return(1); case (REWIND_THIS): break; + case (REWIND_FORCE): + mandoc_vmsg(MANDOCERR_SCOPEBROKEN, m->parse, + line, ppos, "%s breaks %s", + mdoc_macronames[tok], + mdoc_macronames[n->tok]); + /* FALLTHROUGH */ case (REWIND_MORE): n = n->parent; continue; case (REWIND_LATER): - return(make_pending(n, tok, m, line, ppos)); + if (make_pending(n, tok, m, line, ppos) || + MDOC_BLOCK != t) + return(1); + /* FALLTHROUGH */ case (REWIND_ERROR): - /* XXX Make this non-fatal. */ - mdoc_pmsg(m, line, ppos, MANDOCERR_SYNTNOSCOPE); - return 0; + mdoc_pmsg(m, line, ppos, MANDOCERR_NOSCOPE); + return(1); } break; } @@ -567,7 +583,41 @@ rew_sub(enum mdoc_type t, struct mdoc *m, return(1); } +/* + * Allocate a word and check whether it's punctuation or not. + * Punctuation consists of those tokens found in mdoc_isdelim(). + */ +static int +dword(struct mdoc *m, int line, + int col, const char *p, enum mdelim d) +{ + + if (DELIM_MAX == d) + d = mdoc_isdelim(p); + if ( ! mdoc_word_alloc(m, line, col, p)) + return(0); + + if (DELIM_OPEN == d) + m->last->flags |= MDOC_DELIMO; + + /* + * Closing delimiters only suppress the preceding space + * when they follow something, not when they start a new + * block or element, and not when they follow `No'. + * + * XXX Explicitly special-casing MDOC_No here feels + * like a layering violation. Find a better way + * and solve this in the code related to `No'! + */ + + else if (DELIM_CLOSE == d && m->last->prev && + m->last->prev->tok != MDOC_No) + m->last->flags |= MDOC_DELIMC; + + return(1); +} + static int append_delims(struct mdoc *m, int line, int *pos, char *buf) { @@ -580,29 +630,27 @@ append_delims(struct mdoc *m, int line, int *pos, char for (;;) { la = *pos; - ac = mdoc_zargs(m, line, pos, buf, ARGS_NOWARN, &p); + ac = mdoc_zargs(m, line, pos, buf, &p); if (ARGS_ERROR == ac) return(0); else if (ARGS_EOLN == ac) break; - assert(DELIM_NONE != mdoc_isdelim(p)); - if ( ! mdoc_word_alloc(m, line, la, p)) - return(0); + dword(m, line, la, p, DELIM_MAX); /* * If we encounter end-of-sentence symbols, then trigger * the double-space. * - * XXX: it's easy to allow this to propogate outward to + * XXX: it's easy to allow this to propagate outward to * the last symbol, such that `. )' will cause the * correct double-spacing. However, (1) groff isn't * smart enough to do this and (2) it would require * knowing which symbols break this behaviour, for - * example, `. ;' shouldn't propogate the double-space. + * example, `. ;' shouldn't propagate the double-space. */ - if (mandoc_eos(p, strlen(p))) + if (mandoc_eos(p, strlen(p), 0)) m->last->flags |= MDOC_EOS; } @@ -648,12 +696,12 @@ blk_exp_close(MACRO_PROT_ARGS) /* Remember the start of our own body. */ if (MDOC_BODY == n->type && atok == n->tok) { - if ( ! n->end) + if (ENDBODY_NOT == n->end) body = n; continue; } - if (MDOC_BLOCK != n->type) + if (MDOC_BLOCK != n->type || MDOC_Nm == n->tok) continue; if (atok == n->tok) { assert(body); @@ -671,8 +719,7 @@ blk_exp_close(MACRO_PROT_ARGS) * postpone closing out the current block * until the rew_sub() closing out the sub-block. */ - if ( ! make_pending(later, tok, m, line, ppos)) - return(0); + make_pending(later, tok, m, line, ppos); /* * Mark the place where the formatting - but not @@ -692,17 +739,14 @@ blk_exp_close(MACRO_PROT_ARGS) if (later && MDOC_EXPLICIT & mdoc_macros[later->tok].flags) continue; - if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) { - assert( ! (MDOC_ACTED & n->flags)); + if (MDOC_CALLABLE & mdoc_macros[n->tok].flags) later = n; - } } if ( ! (MDOC_CALLABLE & mdoc_macros[tok].flags)) { /* FIXME: do this in validate */ if (buf[*pos]) - if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST)) - return(0); + mdoc_pmsg(m, line, ppos, MANDOCERR_ARGSLOST); if ( ! rew_sub(MDOC_BODY, m, tok, line, ppos)) return(0); @@ -737,7 +781,7 @@ blk_exp_close(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, lastarg, p)) + if ( ! dword(m, line, lastarg, p, DELIM_MAX)) return(0); continue; } @@ -786,7 +830,7 @@ in_line(MACRO_PROT_ARGS) /* FALLTHROUGH */ case (MDOC_Fl): /* FALLTHROUGH */ - case (MDOC_Lk): + case (MDOC_Mt): /* FALLTHROUGH */ case (MDOC_Nm): /* FALLTHROUGH */ @@ -845,9 +889,9 @@ in_line(MACRO_PROT_ARGS) return(0); } else if ( ! nc && 0 == cnt) { mdoc_argv_free(arg); - if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY)) - return(0); + mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY); } + if ( ! mdoc_macro(m, ntok, line, la, pos, buf)) return(0); if ( ! nl) @@ -896,7 +940,8 @@ in_line(MACRO_PROT_ARGS) if (DELIM_NONE == d) cnt++; - if ( ! mdoc_word_alloc(m, line, la, p)) + + if ( ! dword(m, line, la, p, d)) return(0); /* @@ -927,8 +972,7 @@ in_line(MACRO_PROT_ARGS) return(0); } else if ( ! nc && 0 == cnt) { mdoc_argv_free(arg); - if ( ! mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY)) - return(0); + mdoc_pmsg(m, line, ppos, MANDOCERR_MACROEMPTY); } if ( ! nl) @@ -963,7 +1007,7 @@ blk_full(MACRO_PROT_ARGS) } /* - * This routine accomodates implicitly- and explicitly-scoped + * This routine accommodates implicitly- and explicitly-scoped * macro openings. Implicit ones first close out prior scope * (seen above). Delay opening the head until necessary to * allow leading punctuation to print. Special consideration @@ -1018,6 +1062,9 @@ blk_full(MACRO_PROT_ARGS) lac = ARGS_ERROR == ac ? ARGS_PEND : ac; ac = mdoc_args(m, line, pos, buf, tok, &p); + if (ARGS_PUNCT == ac) + break; + if (ARGS_ERROR == ac) return(0); @@ -1050,7 +1097,7 @@ blk_full(MACRO_PROT_ARGS) ARGS_PPHRASE != ac && ARGS_QWORD != ac && DELIM_OPEN == mdoc_isdelim(p)) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_OPEN)) return(0); continue; } @@ -1102,7 +1149,7 @@ blk_full(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; } @@ -1136,7 +1183,6 @@ blk_full(MACRO_PROT_ARGS) if (MDOC_BLOCK == n->type && MDOC_EXPLICIT & mdoc_macros[n->tok].flags && ! (MDOC_VALID & n->flags)) { - assert( ! (MDOC_ACTED & n->flags)); n->pending = head; return(1); } @@ -1213,8 +1259,8 @@ blk_part_imp(MACRO_PROT_ARGS) break; if (NULL == body && ARGS_QWORD != ac && - DELIM_OPEN == mdoc_isdelim(p)) { - if ( ! mdoc_word_alloc(m, line, la, p)) + DELIM_OPEN == mdoc_isdelim(p)) { + if ( ! dword(m, line, la, p, DELIM_OPEN)) return(0); continue; } @@ -1228,7 +1274,7 @@ blk_part_imp(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; } @@ -1255,10 +1301,10 @@ blk_part_imp(MACRO_PROT_ARGS) */ if (n && MDOC_TEXT == n->type && n->string) - if (mandoc_eos(n->string, strlen(n->string))) + if (mandoc_eos(n->string, strlen(n->string), 1)) n->flags |= MDOC_EOS; - /* Up-propogate the end-of-space flag. */ + /* Up-propagate the end-of-space flag. */ if (n && (MDOC_EOS & n->flags)) { body->flags |= MDOC_EOS; @@ -1274,9 +1320,7 @@ blk_part_imp(MACRO_PROT_ARGS) if (MDOC_BLOCK == n->type && MDOC_EXPLICIT & mdoc_macros[n->tok].flags && ! (MDOC_VALID & n->flags)) { - assert( ! (MDOC_ACTED & n->flags)); - if ( ! make_pending(n, tok, m, line, ppos)) - return(0); + make_pending(n, tok, m, line, ppos); if ( ! mdoc_endbody_alloc(m, line, ppos, tok, body, ENDBODY_NOSPACE)) return(0); @@ -1290,9 +1334,9 @@ blk_part_imp(MACRO_PROT_ARGS) * is ugly behaviour nodding its head to OpenBSD's overwhelming * crufty use of `Op' breakage. */ - if (n != body && ! mdoc_vmsg(m, MANDOCERR_SCOPE, line, ppos, - "%s broken", mdoc_macronames[tok])) - return(0); + if (n != body) + mandoc_vmsg(MANDOCERR_SCOPENEST, m->parse, line, ppos, + "%s broken", mdoc_macronames[tok]); if (n && ! rew_sub(MDOC_BODY, m, tok, line, ppos)) return(0); @@ -1346,9 +1390,9 @@ blk_part_exp(MACRO_PROT_ARGS) /* Flush out leading punctuation. */ if (NULL == head && ARGS_QWORD != ac && - DELIM_OPEN == mdoc_isdelim(p)) { + DELIM_OPEN == mdoc_isdelim(p)) { assert(NULL == body); - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_OPEN)) return(0); continue; } @@ -1369,7 +1413,7 @@ blk_part_exp(MACRO_PROT_ARGS) assert(head); /* No check whether it's a macro! */ if (MDOC_Eo == tok) - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); if ( ! rew_sub(MDOC_HEAD, m, tok, line, ppos)) @@ -1387,7 +1431,7 @@ blk_part_exp(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; } @@ -1452,6 +1496,8 @@ in_line_argn(MACRO_PROT_ARGS) case (MDOC_Ux): maxargs = 0; break; + case (MDOC_Bx): + /* FALLTHROUGH */ case (MDOC_Xr): maxargs = 2; break; @@ -1490,9 +1536,9 @@ in_line_argn(MACRO_PROT_ARGS) break; if ( ! (MDOC_IGNDELIM & mdoc_macros[tok].flags) && - ARGS_QWORD != ac && - 0 == j && DELIM_OPEN == mdoc_isdelim(p)) { - if ( ! mdoc_word_alloc(m, line, la, p)) + ARGS_QWORD != ac && 0 == j && + DELIM_OPEN == mdoc_isdelim(p)) { + if ( ! dword(m, line, la, p, DELIM_OPEN)) return(0); continue; } else if (0 == j) @@ -1542,7 +1588,7 @@ in_line_argn(MACRO_PROT_ARGS) } #endif - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); j++; } @@ -1572,6 +1618,9 @@ in_line_eoln(MACRO_PROT_ARGS) assert( ! (MDOC_PARSED & mdoc_macros[tok].flags)); + if (tok == MDOC_Pp) + rew_sub(MDOC_BLOCK, m, MDOC_Nm, line, ppos); + /* Parse macro arguments. */ for (arg = NULL; ; ) { @@ -1610,7 +1659,7 @@ in_line_eoln(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup(tok, p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; } @@ -1635,7 +1684,7 @@ ctx_synopsis(MACRO_PROT_ARGS) nl = MDOC_NEWLINE & m->flags; /* If we're not in the SYNOPSIS, go straight to in-line. */ - if (SEC_SYNOPSIS != m->lastsec) + if ( ! (MDOC_SYNOPSIS & m->flags)) return(in_line(m, tok, line, ppos, pos, buf)); /* If we're a nested call, same place. */ @@ -1647,7 +1696,9 @@ ctx_synopsis(MACRO_PROT_ARGS) * up formatting the block scope, then child nodes will inherit * the formatting. Be careful. */ - + if (MDOC_Nm == tok) + return(blk_full(m, tok, line, ppos, pos, buf)); + assert(MDOC_Vt == tok); return(blk_part_imp(m, tok, line, ppos, pos, buf)); } @@ -1657,7 +1708,8 @@ static int obsolete(MACRO_PROT_ARGS) { - return(mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS)); + mdoc_pmsg(m, line, ppos, MANDOCERR_MACROOBS); + return(1); } @@ -1677,7 +1729,7 @@ phrase(struct mdoc *m, int line, int ppos, char *buf) for (pos = ppos; ; ) { la = pos; - ac = mdoc_zargs(m, line, &pos, buf, 0, &p); + ac = mdoc_zargs(m, line, &pos, buf, &p); if (ARGS_ERROR == ac) return(0); @@ -1687,7 +1739,7 @@ phrase(struct mdoc *m, int line, int ppos, char *buf) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; } @@ -1722,7 +1774,7 @@ phrase_ta(MACRO_PROT_ARGS) for (;;) { la = *pos; - ac = mdoc_zargs(m, line, pos, buf, 0, &p); + ac = mdoc_zargs(m, line, pos, buf, &p); if (ARGS_ERROR == ac) return(0); @@ -1732,7 +1784,7 @@ phrase_ta(MACRO_PROT_ARGS) ntok = ARGS_QWORD == ac ? MDOC_MAX : lookup_raw(p); if (MDOC_MAX == ntok) { - if ( ! mdoc_word_alloc(m, line, la, p)) + if ( ! dword(m, line, la, p, DELIM_MAX)) return(0); continue; }