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Got a lot of regex test cases working

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This commit is contained in:
Dan Hirsch 2013-05-23 23:26:22 +02:00
parent f37a13ef41
commit 0600440b7c
11 changed files with 148 additions and 14 deletions
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83
src/backends/regex_debug.c Normal file
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// Intended to be included from regex_debug.c
#define _GNU_SOURCE
#include <stdio.h>
#include <malloc.h>
// This is some spectacularly non-portable code... but whee!
#include <dlfcn.h>
char* getsym(void* addr) {
Dl_info dli;
char* retstr;
if (dladdr(addr, &dli) != 0 && dli.dli_sname != NULL) {
if (dli.dli_saddr == addr)
return strdup(dli.dli_sname);
else
asprintf(&retstr, "%s+0x%lx", dli.dli_sname, addr - dli.dli_saddr);
} else
asprintf(&retstr, "%p", addr);
return retstr;
}
const char* rvm_op_names[RVM_OPCOUNT] = {
"ACCEPT",
"GOTO",
"FORK",
"PUSH",
"ACTION",
"CAPTURE",
"EOF",
"MATCH",
"STEP"
};
const char* svm_op_names[SVM_OPCOUNT] = {
"PUSH",
"NOP",
"ACTION",
"CAPTURE",
"ACCEPT"
};
void dump_rvm_prog(HRVMProg *prog) {
char* symref;
for (unsigned int i = 0; i < prog->length; i++) {
HRVMInsn *insn = &prog->insns[i];
printf("%4d %-10s", i, rvm_op_names[insn->op]);
switch (insn->op) {
case RVM_GOTO:
case RVM_FORK:
printf("%hd\n", insn->arg);
break;
case RVM_ACTION:
symref = getsym(prog->actions[insn->arg].action);
// TODO: somehow format the argument to action
printf("%s\n", symref);
free(symref);
break;
case RVM_MATCH: {
uint8_t low, high;
low = insn->arg & 0xff;
high = (insn->arg >> 8) & 0xff;
if (high > low)
printf("NONE\n");
else {
if (low >= 0x32 && low <= 0x7e)
printf("%02hhx ('%c')", low, low);
else
printf("%02hhx", low);
if (high >= 0x32 && high <= 0x7e)
printf(" - %02hhx ('%c')\n", high, high);
else
printf(" - %02hhx\n", high);
}
break;
}
default:
printf("\n");
}
}
}