ref: cd525d484b6da88d96717646b9800da935a2e234
dir: /extras.c/
#include <stdio.h> #include <stdlib.h> #include <string.h> #include <time.h> #include <unistd.h> #include "ficl.h" #ifndef FICL_ANSI /* ** Ficl interface to _getcwd (Win32) ** Prints the current working directory using the VM's ** textOut method... */ static void ficlPrimitiveGetCwd(ficlVm *vm) { char *directory; directory = getcwd(NULL, 80); ficlVmTextOut(vm, directory); ficlVmTextOut(vm, "\n"); free(directory); return; } /* ** Ficl interface to _chdir (Win32) ** Gets a newline (or NULL) delimited string from the input ** and feeds it to the Win32 chdir function... ** Example: ** cd c:\tmp */ static void ficlPrimitiveChDir(ficlVm *vm) { ficlCountedString *counted = (ficlCountedString *)vm->pad; ficlVmGetString(vm, counted, '\n'); if (counted->length > 0) { int err = chdir(counted->text); if (err) { ficlVmTextOut(vm, "Error: path not found\n"); ficlVmThrow(vm, FICL_VM_STATUS_QUIT); } } else { ficlVmTextOut(vm, "Warning (chdir): nothing happened\n"); } return; } static void ficlPrimitiveClock(ficlVm *vm) { clock_t now = clock(); ficlStackPushUnsigned(vm->dataStack, (ficlUnsigned)now); return; } #endif /* FICL_ANSI */ /* ** Ficl interface to system (ANSI) ** Gets a newline (or NULL) delimited string from the input ** and feeds it to the ANSI system function... ** Example: ** system del *.* ** \ ouch! */ static void ficlPrimitiveSystem(ficlVm *vm) { ficlCountedString *counted = (ficlCountedString *)vm->pad; ficlVmGetString(vm, counted, '\n'); if (FICL_COUNTED_STRING_GET_LENGTH(*counted) > 0) { int returnValue = system(FICL_COUNTED_STRING_GET_POINTER(*counted)); if (returnValue) { sprintf(vm->pad, "System call returned %d\n", returnValue); ficlVmTextOut(vm, vm->pad); ficlVmThrow(vm, FICL_VM_STATUS_QUIT); } } else { ficlVmTextOut(vm, "Warning (system): nothing happened\n"); } return; } /* ** Ficl add-in to load a text file and execute it... ** Cheesy, but illustrative. ** Line oriented... filename is newline (or NULL) delimited. ** Example: ** load test.f */ #define BUFFER_SIZE 256 static void ficlPrimitiveLoad(ficlVm *vm) { char buffer[BUFFER_SIZE]; char filename[BUFFER_SIZE]; ficlCountedString *counted = (ficlCountedString *)filename; int line = 0; FILE *f; int result = 0; ficlCell oldSourceId; ficlString s; ficlVmGetString(vm, counted, '\n'); if (FICL_COUNTED_STRING_GET_LENGTH(*counted) <= 0) { ficlVmTextOut(vm, "Warning (load): nothing happened\n"); return; } /* ** get the file's size and make sure it exists */ f = fopen(FICL_COUNTED_STRING_GET_POINTER(*counted), "r"); if (!f) { ficlVmTextOut(vm, "Unable to open file "); ficlVmTextOut(vm, FICL_COUNTED_STRING_GET_POINTER(*counted)); ficlVmTextOut(vm, "\n"); ficlVmThrow(vm, FICL_VM_STATUS_QUIT); } oldSourceId = vm->sourceId; vm->sourceId.p = (void *)f; /* feed each line to ficlExec */ while (fgets(buffer, BUFFER_SIZE, f)) { int length = strlen(buffer) - 1; line++; if (length <= 0) continue; if (buffer[length] == '\n') buffer[length--] = '\0'; FICL_STRING_SET_POINTER(s, buffer); FICL_STRING_SET_LENGTH(s, length + 1); result = ficlVmExecuteString(vm, s); /* handle "bye" in loaded files. --lch */ switch (result) { case FICL_VM_STATUS_OUT_OF_TEXT: case FICL_VM_STATUS_USER_EXIT: break; default: vm->sourceId = oldSourceId; fclose(f); ficlVmThrowError(vm, "Error loading file <%s> line %d", FICL_COUNTED_STRING_GET_POINTER(*counted), line); break; } } /* ** Pass an empty line with SOURCE-ID == -1 to flush ** any pending REFILLs (as required by FILE wordset) */ vm->sourceId.i = -1; FICL_STRING_SET_FROM_CSTRING(s, ""); ficlVmExecuteString(vm, s); vm->sourceId = oldSourceId; fclose(f); /* handle "bye" in loaded files. --lch */ if (result == FICL_VM_STATUS_USER_EXIT) ficlVmThrow(vm, FICL_VM_STATUS_USER_EXIT); return; } /* ** Dump a tab delimited file that summarizes the contents of the ** dictionary hash table by hashcode... */ static void ficlPrimitiveSpewHash(ficlVm *vm) { ficlHash *hash = ficlVmGetDictionary(vm)->forthWordlist; ficlWord *word; FILE *f; unsigned i; unsigned hashSize = hash->size; if (!ficlVmGetWordToPad(vm)) ficlVmThrow(vm, FICL_VM_STATUS_OUT_OF_TEXT); f = fopen(vm->pad, "w"); if (!f) { ficlVmTextOut(vm, "unable to open file\n"); return; } for (i = 0; i < hashSize; i++) { int n = 0; word = hash->table[i]; while (word) { n++; word = word->link; } fprintf(f, "%d\t%d", i, n); word = hash->table[i]; while (word) { fprintf(f, "\t%s", word->name); word = word->link; } fprintf(f, "\n"); } fclose(f); return; } static void ficlPrimitiveBreak(ficlVm *vm) { vm->state = vm->state; return; } void ficlSystemCompileExtras(ficlSystem *system) { ficlDictionary *dictionary = ficlSystemGetDictionary(system); ficlDictionarySetPrimitive(dictionary, "break", ficlPrimitiveBreak, FICL_WORD_DEFAULT); ficlDictionarySetPrimitive(dictionary, "load", ficlPrimitiveLoad, FICL_WORD_DEFAULT); ficlDictionarySetPrimitive(dictionary, "spewhash", ficlPrimitiveSpewHash, FICL_WORD_DEFAULT); ficlDictionarySetPrimitive(dictionary, "system", ficlPrimitiveSystem, FICL_WORD_DEFAULT); #ifndef FICL_ANSI ficlDictionarySetPrimitive(dictionary, "clock", ficlPrimitiveClock, FICL_WORD_DEFAULT); ficlDictionarySetConstant(dictionary, "clocks/sec", CLOCKS_PER_SEC); ficlDictionarySetPrimitive(dictionary, "pwd", ficlPrimitiveGetCwd, FICL_WORD_DEFAULT); ficlDictionarySetPrimitive(dictionary, "cd", ficlPrimitiveChDir, FICL_WORD_DEFAULT); #endif /* FICL_ANSI */ return; }