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Diffstat (limited to 'bin/dash/src/mksyntax.c')
| -rw-r--r-- | bin/dash/src/mksyntax.c | 315 |
1 files changed, 0 insertions, 315 deletions
diff --git a/bin/dash/src/mksyntax.c b/bin/dash/src/mksyntax.c deleted file mode 100644 index a23c18ca..00000000 --- a/bin/dash/src/mksyntax.c +++ /dev/null @@ -1,315 +0,0 @@ -/*- - * Copyright (c) 1991, 1993 - * The Regents of the University of California. All rights reserved. - * Copyright (c) 1997-2005 - * Herbert Xu <herbert@gondor.apana.org.au>. 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. - */ - -/* - * This program creates syntax.h and syntax.c. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <sys/types.h> -#include "parser.h" - - -struct synclass { - char *name; - char *comment; -}; - -/* Syntax classes */ -struct synclass synclass[] = { - { "CWORD", "character is nothing special" }, - { "CNL", "newline character" }, - { "CBACK", "a backslash character" }, - { "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. - */ -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 char writer[] = "\ -/*\n\ - * This file was generated by the mksyntax program.\n\ - */\n\ -\n"; - - -static FILE *cfile; -static FILE *hfile; -static char *syntax[513]; - -static void filltable(char *); -static void init(void); -static void add(char *, char *); -static void print(char *); -static void output_type_macros(void); -int main(int, char **); - -int -main(int argc, char **argv) -{ - 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 <ctype.h>\n", hfile); - fputs("\n", hfile); - fputs("#ifdef CEOF\n", hfile); - fputs("#undef CEOF\n", hfile); - fputs("#endif\n", hfile); - fputs("\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); - fprintf(hfile, "#define SYNBASE %d\n", 130); - fprintf(hfile, "#define PEOF %d\n\n", -130); - fprintf(hfile, "#define PEOA %d\n\n", -129); - 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 \"shell.h\"\n", cfile); - fputs("#include \"syntax.h\"\n\n", cfile); - init(); - fputs("/* syntax table used when not in quotes */\n", cfile); - add("\n", "CNL"); - add("\\", "CBACK"); - add("'", "CSQUOTE"); - add("\"", "CDQUOTE"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - add("<>();&| \t", "CSPCL"); - syntax[1] = "CSPCL"; - print("basesyntax"); - init(); - fputs("\n/* syntax table used when in double quotes */\n", cfile); - add("\n", "CNL"); - add("\\", "CBACK"); - add("\"", "CENDQUOTE"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ - add("!*?[=~:/-]", "CCTL"); - print("dqsyntax"); - init(); - fputs("\n/* syntax table used when in single quotes */\n", cfile); - add("\n", "CNL"); - add("'", "CENDQUOTE"); - /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ - add("!*?[=~:/-]\\", "CCTL"); - print("sqsyntax"); - init(); - fputs("\n/* syntax table used when in arithmetic */\n", cfile); - add("\n", "CNL"); - add("\\", "CBACK"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - add("(", "CLP"); - add(")", "CRP"); - print("arisyntax"); - filltable("0"); - fputs("\n/* character classification table */\n", cfile); - add("0123456789", "ISDIGIT"); - add("abcdefghijklmnopqrstucvwxyz", "ISLOWER"); - add("ABCDEFGHIJKLMNOPQRSTUCVWXYZ", "ISUPPER"); - add("_", "ISUNDER"); - add("#?$!-*@", "ISSPECL"); - print("is_type"); - exit(0); - /* NOTREACHED */ -} - - - -/* - * Clear the syntax table. - */ - -static void -filltable(char *dftval) -{ - int i; - - for (i = 0 ; i < 258; i++) - syntax[i] = dftval; -} - - -/* - * Initialize the syntax table with default values. - */ - -static void -init(void) -{ - int ctl; - - filltable("CWORD"); - syntax[0] = "CEOF"; - syntax[1] = "CIGN"; - for (ctl = CTL_FIRST; ctl <= CTL_LAST; ctl++ ) - syntax[130 + ctl] = "CCTL"; -} - - -/* - * Add entries to the syntax table. - */ - -static void -add(char *p, char *type) -{ - while (*p) - syntax[(signed char)*p++ + 130] = type; -} - - - -/* - * Output the syntax table. - */ - -static void -print(char *name) -{ - int i; - int col; - - fprintf(hfile, "extern const char %s[];\n", name); - fprintf(cfile, "const char %s[] = {\n", name); - col = 0; - for (i = 0 ; i < 258; i++) { - if (i == 0) { - fputs(" ", cfile); - } else if ((i & 03) == 0) { - fputs(",\n ", cfile); - col = 0; - } else { - putc(',', cfile); - while (++col < 9 * (i & 03)) - putc(' ', cfile); - } - fputs(syntax[i], cfile); - col += strlen(syntax[i]); - } - fputs("\n};\n", cfile); -} - - - -/* - * Output character classification macros (e.g. is_digit). If digits are - * contiguous, we can test for them quickly. - */ - -static char *macro[] = { - "#define is_digit(c)\t((unsigned)((c) - '0') <= 9)\n", - "#define is_alpha(c)\tisalpha((unsigned char)(c))\n", - "#define is_name(c)\t((c) == '_' || isalpha((unsigned char)(c)))\n", - "#define is_in_name(c)\t((c) == '_' || isalnum((unsigned char)(c)))\n", - "#define is_special(c)\t((is_type+SYNBASE)[(signed char)(c)] & (ISSPECL|ISDIGIT))\n", - NULL -}; - -static void -output_type_macros(void) -{ - char **pp; - - for (pp = macro ; *pp ; pp++) - fputs(*pp, hfile); - fputs("#define digit_val(c)\t((c) - '0')\n", hfile); -} |