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Diffstat (limited to 'bin/1sh/mksyntax.c')
| -rw-r--r-- | bin/1sh/mksyntax.c | 332 |
1 files changed, 0 insertions, 332 deletions
diff --git a/bin/1sh/mksyntax.c b/bin/1sh/mksyntax.c deleted file mode 100644 index b61378a9..00000000 --- a/bin/1sh/mksyntax.c +++ /dev/null @@ -1,332 +0,0 @@ -/*- - * SPDX-License-Identifier: BSD-3-Clause - * - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Kenneth Almquist. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 3. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#if 0 -#ifndef lint -static char const copyright[] = -"@(#) Copyright (c) 1991, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)mksyntax.c 8.2 (Berkeley) 5/4/95"; -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -/* $FreeBSD: releng/12.1/bin/sh/mksyntax.c 334008 2018-05-21 21:52:48Z jilles $ */ - -/* - * This program creates syntax.h and syntax.c. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include "parser.h" - - -struct synclass { - const char *name; - const char *comment; -}; - -/* Syntax classes */ -static const struct synclass synclass[] = { - { "CWORD", "character is nothing special" }, - { "CNL", "newline character" }, - { "CQNL", "newline character in quotes" }, - { "CBACK", "a backslash character" }, - { "CSBACK", "a backslash character in single quotes" }, - { "CSQUOTE", "single quote" }, - { "CDQUOTE", "double quote" }, - { "CENDQUOTE", "a terminating quote" }, - { "CBQUOTE", "backwards single quote" }, - { "CVAR", "a dollar sign" }, - { "CENDVAR", "a '}' character" }, - { "CLP", "a left paren in arithmetic" }, - { "CRP", "a right paren in arithmetic" }, - { "CEOF", "end of file" }, - { "CCTL", "like CWORD, except it must be escaped" }, - { "CSPCL", "these terminate a word" }, - { "CIGN", "character should be ignored" }, - { NULL, NULL } -}; - - -/* - * Syntax classes for is_ functions. Warning: if you add new classes - * you may have to change the definition of the is_in_name macro. - */ -static const struct synclass is_entry[] = { - { "ISDIGIT", "a digit" }, - { "ISUPPER", "an upper case letter" }, - { "ISLOWER", "a lower case letter" }, - { "ISUNDER", "an underscore" }, - { "ISSPECL", "the name of a special parameter" }, - { NULL, NULL } -}; - -static const char writer[] = "\ -/*\n\ - * This file was generated by the mksyntax program.\n\ - */\n\ -\n"; - - -static FILE *cfile; -static FILE *hfile; - -static void add_default(void); -static void finish(void); -static void init(const char *); -static void add(const char *, const char *); -static void output_type_macros(void); - -int -main(int argc __unused, char **argv __unused) -{ - int i; - char buf[80]; - int pos; - - /* Create output files */ - if ((cfile = fopen("syntax.c", "w")) == NULL) { - perror("syntax.c"); - exit(2); - } - if ((hfile = fopen("syntax.h", "w")) == NULL) { - perror("syntax.h"); - exit(2); - } - fputs(writer, hfile); - fputs(writer, cfile); - - fputs("#include <sys/cdefs.h>\n", hfile); - fputs("#include <limits.h>\n\n", hfile); - - /* Generate the #define statements in the header file */ - fputs("/* Syntax classes */\n", hfile); - for (i = 0 ; synclass[i].name ; i++) { - sprintf(buf, "#define %s %d", synclass[i].name, i); - fputs(buf, hfile); - for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07) - putc('\t', hfile); - fprintf(hfile, "/* %s */\n", synclass[i].comment); - } - putc('\n', hfile); - fputs("/* Syntax classes for is_ functions */\n", hfile); - for (i = 0 ; is_entry[i].name ; i++) { - sprintf(buf, "#define %s %#o", is_entry[i].name, 1 << i); - fputs(buf, hfile); - for (pos = strlen(buf) ; pos < 32 ; pos = (pos + 8) & ~07) - putc('\t', hfile); - fprintf(hfile, "/* %s */\n", is_entry[i].comment); - } - putc('\n', hfile); - fputs("#define SYNBASE (1 - CHAR_MIN)\n", hfile); - fputs("#define PEOF -SYNBASE\n\n", hfile); - putc('\n', hfile); - fputs("#define BASESYNTAX (basesyntax + SYNBASE)\n", hfile); - fputs("#define DQSYNTAX (dqsyntax + SYNBASE)\n", hfile); - fputs("#define SQSYNTAX (sqsyntax + SYNBASE)\n", hfile); - fputs("#define ARISYNTAX (arisyntax + SYNBASE)\n", hfile); - putc('\n', hfile); - output_type_macros(); /* is_digit, etc. */ - putc('\n', hfile); - - /* Generate the syntax tables. */ - fputs("#include \"parser.h\"\n", cfile); - fputs("#include \"shell.h\"\n", cfile); - fputs("#include \"syntax.h\"\n\n", cfile); - - fputs("/* syntax table used when not in quotes */\n", cfile); - init("basesyntax"); - add_default(); - add("\n", "CNL"); - add("\\", "CBACK"); - add("'", "CSQUOTE"); - add("\"", "CDQUOTE"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - add("<>();&| \t", "CSPCL"); - finish(); - - fputs("\n/* syntax table used when in double quotes */\n", cfile); - init("dqsyntax"); - add_default(); - add("\n", "CQNL"); - add("\\", "CBACK"); - add("\"", "CENDQUOTE"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - /* ':/' for tilde expansion, '-^]' for [a\-x] pattern ranges */ - add("!*?[]=~:/-^", "CCTL"); - finish(); - - fputs("\n/* syntax table used when in single quotes */\n", cfile); - init("sqsyntax"); - add_default(); - add("\n", "CQNL"); - add("\\", "CSBACK"); - add("'", "CENDQUOTE"); - /* ':/' for tilde expansion, '-^]' for [a\-x] pattern ranges */ - add("!*?[]=~:/-^", "CCTL"); - finish(); - - fputs("\n/* syntax table used when in arithmetic */\n", cfile); - init("arisyntax"); - add_default(); - add("\n", "CQNL"); - add("\\", "CBACK"); - add("`", "CBQUOTE"); - add("\"", "CIGN"); - add("$", "CVAR"); - add("}", "CENDVAR"); - add("(", "CLP"); - add(")", "CRP"); - finish(); - - fputs("\n/* character classification table */\n", cfile); - init("is_type"); - add("0123456789", "ISDIGIT"); - add("abcdefghijklmnopqrstuvwxyz", "ISLOWER"); - add("ABCDEFGHIJKLMNOPQRSTUVWXYZ", "ISUPPER"); - add("_", "ISUNDER"); - add("#?$!-*@", "ISSPECL"); - finish(); - - exit(0); -} - - -/* - * Output the header and declaration of a syntax table. - */ - -static void -init(const char *name) -{ - fprintf(hfile, "extern const char %s[];\n", name); - fprintf(cfile, "const char %s[SYNBASE + CHAR_MAX + 1] = {\n", name); -} - - -static void -add_one(const char *key, const char *type) -{ - fprintf(cfile, "\t[SYNBASE + %s] = %s,\n", key, type); -} - - -/* - * Add default values to the syntax table. - */ - -static void -add_default(void) -{ - add_one("PEOF", "CEOF"); - add_one("CTLESC", "CCTL"); - add_one("CTLVAR", "CCTL"); - add_one("CTLENDVAR", "CCTL"); - add_one("CTLBACKQ", "CCTL"); - add_one("CTLBACKQ + CTLQUOTE", "CCTL"); - add_one("CTLARI", "CCTL"); - add_one("CTLENDARI", "CCTL"); - add_one("CTLQUOTEMARK", "CCTL"); - add_one("CTLQUOTEEND", "CCTL"); -} - - -/* - * Output the footer of a syntax table. - */ - -static void -finish(void) -{ - fputs("};\n", cfile); -} - - -/* - * Add entries to the syntax table. - */ - -static void -add(const char *p, const char *type) -{ - for (; *p; ++p) { - char c = *p; - switch (c) { - case '\t': c = 't'; break; - case '\n': c = 'n'; break; - case '\'': c = '\''; break; - case '\\': c = '\\'; break; - - default: - fprintf(cfile, "\t[SYNBASE + '%c'] = %s,\n", c, type); - continue; - } - fprintf(cfile, "\t[SYNBASE + '\\%c'] = %s,\n", c, type); - } -} - - -/* - * Output character classification macros (e.g. is_digit). If digits are - * contiguous, we can test for them quickly. - */ - -static const char *macro[] = { - "#define is_digit(c)\t((unsigned int)((c) - '0') <= 9)", - "#define is_eof(c)\t((c) == PEOF)", - "#define is_alpha(c)\t((is_type+SYNBASE)[(int)c] & (ISUPPER|ISLOWER))", - "#define is_name(c)\t((is_type+SYNBASE)[(int)c] & (ISUPPER|ISLOWER|ISUNDER))", - "#define is_in_name(c)\t((is_type+SYNBASE)[(int)c] & (ISUPPER|ISLOWER|ISUNDER|ISDIGIT))", - "#define is_special(c)\t((is_type+SYNBASE)[(int)c] & (ISSPECL|ISDIGIT))", - "#define digit_val(c)\t((c) - '0')", - NULL -}; - -static void -output_type_macros(void) -{ - const char **pp; - - for (pp = macro ; *pp ; pp++) - fprintf(hfile, "%s\n", *pp); -} |