diff options
Diffstat (limited to 'release/picobsd/tinyware/ash/mksyntax.c')
| -rw-r--r-- | release/picobsd/tinyware/ash/mksyntax.c | 407 |
1 files changed, 0 insertions, 407 deletions
diff --git a/release/picobsd/tinyware/ash/mksyntax.c b/release/picobsd/tinyware/ash/mksyntax.c deleted file mode 100644 index 3030dda..0000000 --- a/release/picobsd/tinyware/ash/mksyntax.c +++ /dev/null @@ -1,407 +0,0 @@ -/* $NetBSD: mksyntax.c,v 1.15 1997/07/05 21:25:09 christos Exp $ */ - -/*- - * 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. All advertising materials mentioning features or use of this software - * must display the following acknowledgement: - * This product includes software developed by the University of - * California, Berkeley and its contributors. - * 4. 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. - */ - -#include <sys/cdefs.h> -#ifndef lint -__COPYRIGHT("@(#) Copyright (c) 1991, 1993\n\ - The Regents of the University of California. All rights reserved.\n"); -#endif /* not lint */ - -#ifndef lint -#if 0 -static char sccsid[] = "@(#)mksyntax.c 8.2 (Berkeley) 5/4/95"; -#else -__RCSID("$NetBSD: mksyntax.c,v 1.15 1997/07/05 21:25:09 christos Exp $"); -#endif -#endif /* not lint */ - -/* - * This program creates syntax.h and syntax.c. - */ - -#include <stdio.h> -#include <string.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" }, - { 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 int base; -static int size; /* number of values which a char variable can have */ -static int nbits; /* number of bits in a character */ -static int digit_contig;/* true if digits are contiguous */ - -static void filltable __P((char *)); -static void init __P((void)); -static void add __P((char *, char *)); -static void print __P((char *)); -static void output_type_macros __P((void)); -static void digit_convert __P((void)); -int main __P((int, char **)); - -int -main(argc, argv) - int argc; - char **argv; -{ - char c; - char d; - int sign; - int i; - char buf[80]; - int pos; - static char digit[] = "0123456789"; - - /* 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); - - /* Determine the characteristics of chars. */ - c = -1; - if (c <= 0) - sign = 1; - else - sign = 0; - for (nbits = 1 ; ; nbits++) { - d = (1 << nbits) - 1; - if (d == c) - break; - } - printf("%s %d bit chars\n", sign? "signed" : "unsigned", nbits); - if (nbits > 9) { - fputs("Characters can't have more than 9 bits\n", stderr); - exit(2); - } - size = (1 << nbits) + 1; - base = 1; - if (sign) - base += 1 << (nbits - 1); - digit_contig = 1; - for (i = 0 ; i < 10 ; i++) { - if (digit[i] != '0' + i) - digit_contig = 0; - } - - fputs("#include <sys/cdefs.h>\n", hfile); - fputs("#include <ctype.h>\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", base); - fprintf(hfile, "#define PEOF %d\n\n", -base); - if (sign) - fprintf(hfile, "#define UPEOF %d\n\n", -base); - else - fprintf(hfile, "#define UPEOF ((unsigned char) %d)\n\n", -base); - 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"); - print("basesyntax"); - init(); - fputs("\n/* syntax table used when in double quotes */\n", cfile); - add("\n", "CNL"); - add("\\", "CBACK"); - add("\"", "CENDQUOTE"); - add("`", "CBQUOTE"); - add("$", "CVAR"); - add("}", "CENDVAR"); - /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ - add("!*?[=~:/-", "CCTL"); - print("dqsyntax"); - init(); - fputs("\n/* syntax table used when in single quotes */\n", cfile); - add("\n", "CNL"); - add("'", "CENDQUOTE"); - /* ':/' for tilde expansion, '-' for [a\-x] pattern ranges */ - add("!*?[=~:/-", "CCTL"); - print("sqsyntax"); - init(); - fputs("\n/* syntax table used when in arithmetic */\n", cfile); - add("\n", "CNL"); - add("\\", "CBACK"); - add("`", "CBQUOTE"); - add("'", "CSQUOTE"); - add("\"", "CDQUOTE"); - add("$", "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"); - if (! digit_contig) - digit_convert(); - exit(0); -} - - - -/* - * Clear the syntax table. - */ - -static void -filltable(dftval) - char *dftval; -{ - int i; - - for (i = 0 ; i < size ; i++) - syntax[i] = dftval; -} - - -/* - * Initialize the syntax table with default values. - */ - -static void -init() -{ - filltable("CWORD"); - syntax[0] = "CEOF"; - syntax[base + CTLESC] = "CCTL"; - syntax[base + CTLVAR] = "CCTL"; - syntax[base + CTLENDVAR] = "CCTL"; - syntax[base + CTLBACKQ] = "CCTL"; - syntax[base + CTLBACKQ + CTLQUOTE] = "CCTL"; - syntax[base + CTLARI] = "CCTL"; - syntax[base + CTLENDARI] = "CCTL"; -} - - -/* - * Add entries to the syntax table. - */ - -static void -add(p, type) - char *p, *type; -{ - while (*p) - syntax[*p++ + base] = type; -} - - - -/* - * Output the syntax table. - */ - -static void -print(name) - char *name; -{ - int i; - int col; - - fprintf(hfile, "extern const char %s[];\n", name); - fprintf(cfile, "const char %s[%d] = {\n", name, size); - col = 0; - for (i = 0 ; i < size ; 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((is_type+SYNBASE)[c] & ISDIGIT)", - "#define is_alpha(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && isalpha((unsigned char) (c)))", - "#define is_name(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalpha((unsigned char) (c))))", - "#define is_in_name(c)\t((c) != UPEOF && ((c) < CTLESC || (c) > CTLENDARI) && ((c) == '_' || isalnum((unsigned char) (c))))", - "#define is_special(c)\t((is_type+SYNBASE)[c] & (ISSPECL|ISDIGIT))", - NULL -}; - -static void -output_type_macros() -{ - char **pp; - - if (digit_contig) - macro[0] = "#define is_digit(c)\t((unsigned)((c) - '0') <= 9)"; - for (pp = macro ; *pp ; pp++) - fprintf(hfile, "%s\n", *pp); - if (digit_contig) - fputs("#define digit_val(c)\t((c) - '0')\n", hfile); - else - fputs("#define digit_val(c)\t(digit_value[c])\n", hfile); -} - - - -/* - * Output digit conversion table (if digits are not contiguous). - */ - -static void -digit_convert() -{ - int maxdigit; - static char digit[] = "0123456789"; - char *p; - int i; - - maxdigit = 0; - for (p = digit ; *p ; p++) - if (*p > maxdigit) - maxdigit = *p; - fputs("extern const char digit_value[];\n", hfile); - fputs("\n\nconst char digit_value[] = {\n", cfile); - for (i = 0 ; i <= maxdigit ; i++) { - for (p = digit ; *p && *p != i ; p++); - if (*p == '\0') - p = digit; - fprintf(cfile, " %d,\n", p - digit); - } - fputs("};\n", cfile); -} |
