better parsing for x=(…) – bug noted by Frank Terbeck
This commit is contained in:
tg
parent
e0a913181b
commit
b3d38f9cdf
33
check.t
33
check.t
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@ -1,4 +1,4 @@
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# $MirOS: src/bin/mksh/check.t,v 1.457 2011/05/29 16:38:58 tg Exp $
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# $MirOS: src/bin/mksh/check.t,v 1.458 2011/06/04 16:11:16 tg Exp $
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# $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
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# $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
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@ -6132,7 +6132,7 @@ stdin:
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expected-stdout:
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5|a|$v|c d|$v|b|
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---
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name: arrays-2
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name: arrays-2a
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description:
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Check if bash-style arrays work as expected
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category: !smksh
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@ -6143,6 +6143,33 @@ stdin:
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expected-stdout:
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5|a|$v|c d|$v|b|
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---
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name: arrays-2b
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description:
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Check if bash-style arrays work as expected, with newlines
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category: !smksh
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stdin:
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test -n "$ZSH_VERSION" && setopt KSH_ARRAYS
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v="e f"
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foo=(a
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bc
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d \$v "$v" '$v' g
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)
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printf '%s|' "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
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foo=(a\
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bc
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d \$v "$v" '$v' g
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)
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printf '%s|' "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
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foo=(a\
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bc\\
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d \$v "$v" '$v'
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g)
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printf '%s|' "${#foo[*]}" "${foo[0]}" "${foo[1]}" "${foo[2]}" "${foo[3]}" "${foo[4]}" "${foo[5]}" "${foo[6]}"; echo
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expected-stdout:
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7|a|bc|d|$v|e f|$v|g|
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7|a|bc|d|$v|e f|$v|g|
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6|abc\|d|$v|e f|$v|g||
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---
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name: arrays-3
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description:
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Check if array bounds are uint32_t
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@ -7675,7 +7702,7 @@ expected-stdout:
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a+=b
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;|
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(*)
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eval set -A c+ -- d e
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set -A c+ -- d e
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;;
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esac
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}
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50
lex.c
50
lex.c
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@ -22,7 +22,7 @@
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.152 2011/05/29 06:19:27 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/lex.c,v 1.153 2011/06/04 16:11:18 tg Exp $");
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/*
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* states while lexing word
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@ -41,9 +41,8 @@ __RCSID("$MirOS: src/bin/mksh/lex.c,v 1.152 2011/05/29 06:19:27 tg Exp $");
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#define SHEREDQUOTE 11 /* parsing " in <<,<<- delimiter */
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#define SPATTERN 12 /* parsing *(...|...) pattern (*+?@!) */
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#define STBRACE 13 /* parsing ${...[#%]...} */
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#define SLETARRAY 14 /* inside =( ), just copy */
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#define SADELIM 15 /* like SBASE, looking for delimiter */
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#define SHERESTRING 16 /* parsing <<< string */
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#define SADELIM 14 /* like SBASE, looking for delimiter */
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#define SHERESTRING 15 /* parsing <<< string */
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#define SINVALID 255 /* invalid state */
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struct sretrace_info {
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@ -220,12 +219,6 @@ yylex(int cf)
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*wp++ = OQUOTE;
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state = SLETPAREN;
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statep->nparen = 0;
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#ifndef MKSH_SMALL
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} else if (cf & LETARRAY) {
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state = SLETARRAY;
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statep->nparen = 0;
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PUSH_SRETRACE();
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#endif
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} else {
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/* normal lexing */
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state = (cf & HEREDELIM) ? SHEREDELIM : SBASE;
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@ -245,7 +238,7 @@ yylex(int cf)
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cf |= ALIAS;
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}
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/* Initial state: one of SWORD SLETPAREN SLETARRAY SHEREDELIM SBASE */
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/* Initial state: one of SWORD SLETPAREN SHEREDELIM SBASE */
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statep->type = state;
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/* check for here string */
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@ -779,30 +772,6 @@ yylex(int cf)
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++statep->nparen;
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goto Sbase2;
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#ifndef MKSH_SMALL
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/* LETARRAY: =( ... ) */
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case SLETARRAY:
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if (c == '('/*)*/)
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++statep->nparen;
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else if (c == /*(*/')') {
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if (statep->nparen-- == 0) {
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POP_SRETRACE();
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/* drop trailing paren */
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c = strlen(dp = sp) - 1;
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XcheckN(ws, wp, c * 2);
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while (c--) {
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*wp++ = CHAR;
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*wp++ = *dp++;
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}
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afree(sp, ATEMP);
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/* assert: c == 0 */
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goto Done;
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}
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}
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/* reuse existing state machine */
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goto Sbase2;
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#endif
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/* <<< delimiter */
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case SHERESTRING:
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if (c == '\\') {
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@ -934,11 +903,6 @@ yylex(int cf)
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/* XXX figure out what is missing */
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yyerror("no closing quote\n");
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#ifndef MKSH_SMALL
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if (state == SLETARRAY && statep->nparen != -1)
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yyerror("%s: %s\n", T_synerr, "missing )");
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#endif
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/* This done to avoid tests for SHEREDELIM wherever SBASE tested */
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if (state == SHEREDELIM || state == SHERESTRING)
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state = SBASE;
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@ -1046,11 +1010,7 @@ yylex(int cf)
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*wp++ = EOS;
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yylval.cp = Xclose(ws, wp);
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if (state == SWORD || state == SLETPAREN
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/* XXX ONEWORD? */
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#ifndef MKSH_SMALL
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|| state == SLETARRAY
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#endif
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)
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/* XXX ONEWORD? */)
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return (LWORD);
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/* unget terminator */
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5
sh.h
5
sh.h
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@ -151,7 +151,7 @@
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#endif
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#ifdef EXTERN
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.471 2011/05/29 16:31:42 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.472 2011/06/04 16:11:19 tg Exp $");
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#endif
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#define MKSH_VERSION "R40 2011/05/29"
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@ -1413,9 +1413,8 @@ typedef union {
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#define HEREDELIM BIT(9) /* parsing <<,<<- delimiter */
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#define LQCHAR BIT(10) /* source string contains QCHAR */
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#define HEREDOC BIT(11) /* parsing a here document */
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#define LETARRAY BIT(12) /* copy expression inside =( ) */
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#define HERES 10 /* max << in line */
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#define HERES 10 /* max number of << in line */
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#undef CTRL
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#define CTRL(x) ((x) == '?' ? 0x7F : (x) & 0x1F) /* ASCII */
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49
syn.c
49
syn.c
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@ -22,7 +22,7 @@
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#include "sh.h"
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__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.65 2011/05/29 02:18:57 tg Exp $");
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__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.66 2011/06/04 16:11:20 tg Exp $");
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extern short subshell_nesting_level;
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@ -292,6 +292,11 @@ get_command(int cf)
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break;
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case '(':
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#ifndef MKSH_SMALL
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if ((XPsize(args) == 0 || Flag(FKEYWORD)) &&
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XPsize(vars) == 1 && is_wdvarassign(yylval.cp))
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goto is_wdarrassign;
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#endif
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/*
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* Check for "> foo (echo hi)" which AT&T ksh
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* allows (not POSIX, but not disallowed)
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@ -301,11 +306,7 @@ get_command(int cf)
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ACCEPT;
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goto Subshell;
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}
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#ifndef MKSH_SMALL
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if ((XPsize(args) == 0 || Flag(FKEYWORD)) &&
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XPsize(vars) == 1 && is_wdvarassign(yylval.cp))
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goto is_wdarrassign;
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#endif
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/* must be a function */
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if (iopn != 0 || XPsize(args) != 1 ||
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XPsize(vars) != 0)
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@ -318,37 +319,37 @@ get_command(int cf)
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is_wdarrassign:
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{
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static const char set_cmd0[] = {
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CHAR, 'e', CHAR, 'v',
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CHAR, 'a', CHAR, 'l', EOS
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CHAR, 's', CHAR, 'e',
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CHAR, 't', EOS
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};
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static const char set_cmd1[] = {
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CHAR, 's', CHAR, 'e',
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CHAR, 't', CHAR, ' ',
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CHAR, '-', CHAR, 'A', EOS
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};
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static const char set_cmd2[] = {
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CHAR, '-', CHAR, '-', EOS
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};
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char *tcp;
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XPfree(vars);
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XPinit(vars, 16);
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/*
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* we know (or rather hope) that yylval.cp
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* contains a string "varname="
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*/
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tcp = wdcopy(yylval.cp, ATEMP);
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tcp[wdscan(tcp, EOS) - tcp - 3] = EOS;
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/* now make an array assignment command */
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t = newtp(TCOM);
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t->lineno = source->line;
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ACCEPT;
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/* manipulate the vars string */
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tcp = *(--vars.cur);
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/* 'varname=' -> 'varname' */
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tcp[wdscan(tcp, EOS) - tcp - 3] = EOS;
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/* construct new args strings */
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XPput(args, wdcopy(set_cmd0, ATEMP));
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XPput(args, wdcopy(set_cmd1, ATEMP));
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XPput(args, tcp);
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XPput(args, wdcopy(set_cmd2, ATEMP));
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musthave(LWORD,LETARRAY);
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XPput(args, yylval.cp);
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break;
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/* slurp in words till closing paren */
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while (token(CONTIN) == LWORD)
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XPput(args, yylval.cp);
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if (symbol != /*(*/ ')')
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syntaxerr(NULL);
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goto Leave;
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}
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#endif
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