Parameters are parsed with getopt. Simplify, constify.
This commit is contained in:
David Given
parent
434eafd35d
commit
13132128a1
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@ -1,4 +1,5 @@
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#include <assert.h>
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#include <unistd.h>
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#include <stdarg.h>
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#include <stdlib.h>
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#include <stdio.h>
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@ -9,10 +10,10 @@
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static char rcsid[] = "$Id$";
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int maxcost = SHRT_MAX;
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int maxcost = SHRT_MAX / 2;
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static char* prefix = "burm";
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static int Iflag = 0, Tflag = 0;
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static int Tflag = 1; /* tracing */
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static int ntnumber = 0;
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static Nonterm start = 0;
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static Term terms;
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@ -51,48 +52,25 @@ int main(int argc, char* argv[])
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yydebug = 1;
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#endif
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if (sizeof(short) == sizeof(int))
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maxcost = SHRT_MAX / 2;
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for (i = 1; i < argc; i++)
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if (strcmp(argv[i], "-I") == 0)
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Iflag = 1;
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else if (strcmp(argv[i], "-T") == 0)
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Tflag = 1;
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else if (strncmp(argv[i], "-maxcost=", 9) == 0 && isdigit(argv[i][9]))
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maxcost = atoi(argv[i] + 9);
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else if (strncmp(argv[i], "-p", 2) == 0 && argv[i][2])
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prefix = &argv[i][2];
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else if (strncmp(argv[i], "-p", 2) == 0 && i + 1 < argc)
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prefix = argv[++i];
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else if (*argv[i] == '-' && argv[i][1])
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for (;;)
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{
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yyerror("usage: %s [-T | -I | -p prefix | -maxcost=ddd ]... [ [ input ] output \n",
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argv[0]);
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int opt = getopt(argc, argv, "p:");
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if (opt == -1)
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break;
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switch (opt)
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{
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case 'p':
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prefix = optarg;
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break;
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default:
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yyerror("usage: %s [-p prefix] < input > output\n", argv[0]);
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exit(1);
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}
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else if (infp == NULL)
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{
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if (strcmp(argv[i], "-") == 0)
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}
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infp = stdin;
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else if ((infp = fopen(argv[i], "r")) == NULL)
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{
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yyerror("%s: can't read `%s'\n", argv[0], argv[i]);
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exit(1);
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}
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}
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else if (outfp == NULL)
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{
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if (strcmp(argv[i], "-") == 0)
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outfp = stdout;
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if ((outfp = fopen(argv[i], "w")) == NULL)
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{
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yyerror("%s: can't write `%s'\n", argv[0], argv[i]);
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exit(1);
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}
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}
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if (infp == NULL)
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infp = stdin;
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if (outfp == NULL)
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outfp = stdout;
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yyin = infp;
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@ -108,7 +86,6 @@ int main(int argc, char* argv[])
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emitstruct(nts, ntnumber);
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emitnts(rules, nrules);
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emitterms(terms);
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if (Iflag)
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emitstring(rules);
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emitrule(nts);
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emitclosure(nts);
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@ -521,14 +498,11 @@ static void emitdefs(Nonterm nts, int ntnumber)
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for (p = nts; p; p = p->link)
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print("#define %P%S_NT %d\n", p, p->number);
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print("int %Pmax_nt = %d;\n\n", ntnumber);
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if (Iflag)
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{
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print("char *%Pntname[] = {\n%10,\n");
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print("static const int %Pmax_nt = %d;\n\n", ntnumber);
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print("const char *%Pntname[] = {\n%10,\n");
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for (p = nts; p; p = p->link)
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print("%1\"%S\",\n", p);
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print("%10\n};\n\n");
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}
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}
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/* emitfuncs - emit functions to access node fields */
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@ -683,12 +657,12 @@ static void emitnts(Rule rules, int nrules)
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;
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if (str[j] == NULL)
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{
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print("static short %Pnts_%d[] = { %s0 };\n", j, buf);
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print("static const short %Pnts_%d[] = { %s0 };\n", j, buf);
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str[j] = strdup(buf);
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}
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nts[i++] = j;
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}
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print("\nshort *%Pnts[] = {\n");
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print("\nconst short *%Pnts[] = {\n");
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for (i = j = 0, r = rules; r; r = r->link)
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{
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for (; j < r->ern; j++)
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@ -722,7 +696,7 @@ static void emitrule(Nonterm nts)
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for (p = nts; p; p = p->link)
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{
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Rule r;
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print("static short %Pdecode_%S[] = {\n%10,\n", p);
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print("static const short %Pdecode_%S[] = {\n%10,\n", p);
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for (r = p->rules; r; r = r->decode)
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print("%1%d,\n", r->ern);
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print("};\n\n");
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@ -802,14 +776,14 @@ static void emitstring(Rule rules)
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Rule r;
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int k;
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print("short %Pcost[][4] = {\n");
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print("static const short %Pcost[][4] = {\n");
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for (k = 0, r = rules; r; r = r->link)
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{
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for (; k < r->ern; k++)
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print("%1{ 0 },%1/* %d */\n", k);
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print("%1{ %d },%1/* %d = %R */\n", r->cost, k++, r);
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}
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print("};\n\nchar *%Pstring[] = {\n");
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print("};\n\nconst char *%Pstring[] = {\n");
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for (k = 0, r = rules; r; r = r->link)
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{
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for (; k < r->ern; k++)
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@ -841,7 +815,7 @@ static void emitterms(Term terms)
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Term p;
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int k;
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print("char %Parity[] = {\n");
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print("static const char %Parity[] = {\n");
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for (k = 0, p = terms; p; p = p->link)
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{
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for (; k < p->esn; k++)
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@ -849,9 +823,8 @@ static void emitterms(Term terms)
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print("%1%d,%1/* %d=%S */\n", p->arity < 0 ? 0 : p->arity, k++, p);
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}
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print("};\n\n");
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if (Iflag)
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{
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print("char *%Popname[] = {\n");
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print("static const char *%Popname[] = {\n");
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for (k = 0, p = terms; p; p = p->link)
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{
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for (; k < p->esn; k++)
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@ -859,7 +832,6 @@ static void emitterms(Term terms)
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print("%1/* %d */%1\"%S\",\n", k++, p);
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}
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print("};\n\n");
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}
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}
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/* emittest - emit clause for testing a match */
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@ -1,7 +1,7 @@
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static void dumpCover(NODEPTR_TYPE p, int goalnt, int indent) {
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#ifdef TRACE
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int eruleno = burm_rule(STATE_LABEL(p), goalnt);
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short *nts = burm_nts[eruleno];
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const short *nts = burm_nts[eruleno];
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NODEPTR_TYPE kids[10];
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int i;
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