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111 lines
2.6 KiB
C
111 lines
2.6 KiB
C
/********************************************
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makescan.c
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copyright 2009-2016,2024, Thomas E. Dickey
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copyright 1991, Michael D. Brennan
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This is a source file for mawk, an implementation of
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the AWK programming language.
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Mawk is distributed without warranty under the terms of
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the GNU General Public License, version 2, 1991.
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********************************************/
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/*
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* $MawkId: makescan.c,v 1.12 2024/08/25 17:17:31 tom Exp $
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*/
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/* source for makescan.exe which builds the scancode[]
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via: makescan.exe > scancode.c
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*/
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#include <stdio.h>
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#include <time.h>
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#include <nstd.h>
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#include <scancode.h>
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char scan_code[256];
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static void
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scan_init(void)
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{
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register char *p;
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memset(scan_code, SC_UNEXPECTED, sizeof(scan_code));
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for (p = &scan_code['0']; p <= &scan_code['9']; p++)
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*p = SC_DIGIT;
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scan_code[0] = 0;
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scan_code[' '] = scan_code['\t'] = scan_code['\f'] = SC_SPACE;
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scan_code['\r'] = scan_code['\013'] = SC_SPACE;
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scan_code[';'] = SC_SEMI_COLON;
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scan_code['\n'] = SC_NL;
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scan_code['{'] = SC_LBRACE;
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scan_code['}'] = SC_RBRACE;
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scan_code['+'] = SC_PLUS;
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scan_code['-'] = SC_MINUS;
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scan_code['*'] = SC_MUL;
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scan_code['/'] = SC_DIV;
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scan_code['%'] = SC_MOD;
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scan_code['^'] = SC_POW;
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scan_code['('] = SC_LPAREN;
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scan_code[')'] = SC_RPAREN;
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scan_code['_'] = SC_IDCHAR;
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scan_code['='] = SC_EQUAL;
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scan_code['#'] = SC_COMMENT;
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scan_code['\"'] = SC_DQUOTE;
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scan_code[','] = SC_COMMA;
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scan_code['!'] = SC_NOT;
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scan_code['<'] = SC_LT;
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scan_code['>'] = SC_GT;
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scan_code['|'] = SC_OR;
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scan_code['&'] = SC_AND;
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scan_code['?'] = SC_QMARK;
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scan_code[':'] = SC_COLON;
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scan_code['['] = SC_LBOX;
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scan_code[']'] = SC_RBOX;
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scan_code['\\'] = SC_ESCAPE;
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scan_code['.'] = SC_DOT;
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scan_code['~'] = SC_MATCH;
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scan_code['$'] = SC_DOLLAR;
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for (p = &scan_code['A']; p <= &scan_code['Z']; p++)
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p[0] = p['a' - 'A'] = SC_IDCHAR;
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}
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static void
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scan_print(void)
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{
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time_t now = time((time_t *) 0);
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register char *p = scan_code;
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register int c; /* column */
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register int r; /* row */
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printf("/*\n * %cMawkId%c\n * generated by makescan.c\n * date: %s */\n",
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'$', '$', ctime(&now));
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printf("#include \"scancode.h\"\n");
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printf("/* *INDENT-OFF* */\n");
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printf("char scan_code[256] = {\n");
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for (r = 1; r <= 16; r++) {
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for (c = 1; c <= 16; c++) {
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printf("%2d", *p++);
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if (r != 16 || c != 16)
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putchar(',');
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}
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putchar('\n');
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}
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printf("} ;\n");
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printf("/* *INDENT-ON* */\n");
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}
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int
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main(void)
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{
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scan_init();
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scan_print();
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return 0;
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}
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