void Jsi_DString_SelfTest() {
{
Jsi_DString d1 = {}, d2 = {"Here is"};
Jsi_DSAppend(&d2 ," your score: ", NULL);
Jsi_DSPrintf(&d2, " -> %d/%d", 99, 100);
char *cp = Jsi_DSValue(&d2);
puts(cp); // "Here is your score: -> 99/100"
Jsi_DSAppend(&d1, cp, NULL);
Jsi_DSFree(&d1); Jsi_DSFree(&d2);
}
{
Jsi_DString d = {};;
Jsi_DSPrintf(&d , "%0300d", 1); // Malloc
Jsi_DSSetLength(&d, 0);
Jsi_DSPrintf(&d , "%0300d", 1); // No-malloc
Jsi_DSFree(&d);
Jsi_DSPrintf(&d , "%0300d", 1); // Malloc
Jsi_DSFree(&d);
}
{
Jsi_DString d;
Jsi_DSInit(&d);
Jsi_DSAppend(&d , " some stuff: ", NULL);
Jsi_DSFree(&d);
}
{
JSI_DSTRING_VAR(dPtr,301);
Jsi_DSPrintf(dPtr , "%0300d", 1); // No-malloc
Jsi_DSSetLength(dPtr, 0);
Jsi_DSPrintf(dPtr , "%0300d", 1); // No-malloc
Jsi_DSFree(dPtr);
Jsi_DSPrintf(dPtr , "%0400d", 1); // Malloc
Jsi_DSFree(dPtr);
}
}
static int JsiCleanupChildren(Jsi_Interp *interp, int numPids, pidtype *pidPtr, fdtype errorId, Jsi_DString *dStr, Jsi_DString *cStr, int *code)
{
struct WaitInfoTable *table = jsi_ExecCmdData(interp);
int result = JSI_OK;
int i, exitCode = 256;
char buf[1000];
Jsi_DString sStr;
Jsi_DSInit(&sStr);
for (i = 0; i < numPids; i++) {
int waitStatus = 0;
if (cStr) {
if (i==0)
Jsi_DSAppend(cStr, (Jsi_DSLength(cStr)>1?", ":""), "children: [", NULL);
else
Jsi_DSAppend(&sStr, ", ", NULL);
}
if (JsiWaitForProcess(table, pidPtr[i], &waitStatus) != JSI_BAD_PID) {
// if (JsiCheckWaitStatus(interp, pidPtr[i], waitStatus, dStr?&sStr:0) != JSI_OK)
//result = JSI_ERROR; // TODO: we don't error out on non-zero return code. Find way to return it.
int es = WEXITSTATUS(waitStatus);
if (WIFEXITED(waitStatus)) {
if (i==0)
exitCode = es;
else if (es>exitCode)
exitCode = es;
}
if (cStr) {
pidtype pid = pidPtr[i];
if (WIFEXITED(waitStatus))
sprintf(buf, "{type:\"exit\", pid:%ld, exitCode:%d}", (long)pid, es);
else
sprintf(buf, "{type:\"%s\", pid:%ld, signal: %d}",
(WIFSIGNALED(waitStatus) ? "killed" : "suspended"), (long)pid, WTERMSIG(waitStatus));
Jsi_DSAppend(&sStr, buf, NULL);
}
}
}
if (i>0 && cStr) {
if (exitCode != 256)
sprintf(buf, ", exitCode: %d", exitCode);
Jsi_DSAppend(cStr, Jsi_DSValue(&sStr), "]", buf, NULL);
}
Jsi_DSFree(&sStr);
Jsi_Free(pidPtr);
/*
* Read the standard error file. If there's anything there,
* then add the file's contents to the result
* string.
*/
if (errorId != JSI_BAD_FD) {
JsiRewindFd(errorId);
if (JsiAppendStreamToString(interp, errorId, dStr) != JSI_OK) {
result = JSI_ERROR;
}
}
*code = exitCode;
return result;
}
/* Format value into dStr. Toplevel caller does init/free. */
const char* Jsi_ValueGetDString(Jsi_Interp *interp, Jsi_Value* v, Jsi_DString *dStr, int quote)
{
objwalker ow;
ow.quote = quote;
ow.depth = 0;
ow.dStr = dStr;
Jsi_DSInit(dStr);
jsiValueGetString(interp, v, dStr, &ow);
return Jsi_DSValue(dStr);
}
/* Simple implementation of exec with system(). Returns return code.
* The system() call *may* do command line redirection, etc.
* The standard output is not available.
* Can't redirect filehandles.
*/
int Jsi_SysExecCmd(Jsi_Interp *interp, Jsi_Value *args, Jsi_DString *rStr)
{
int i, j, len, rc = 0;
Jsi_DString dStr, eStr;
len = Jsi_ValueGetLength(interp, args);
Jsi_DSInit(rStr);
if (len<=0)
return 0;
Jsi_DSInit(&dStr);
#ifdef __WIN32
Jsi_DSAppendLen(&dStr, "\"", 1);
#endif
for (i=0; i<len; i++) {
Jsi_Value *v = Jsi_ValueArrayIndex(interp, args, i);
const char *arg = Jsi_ValueGetDString(interp, v, &eStr, 0);
if (i>1)
Jsi_DSAppendLen(&dStr, " ", 1);
if (strpbrk(arg, "\\\" ") == NULL) {
Jsi_DSAppend(&dStr, arg, NULL);
} else {
Jsi_DSAppendLen(&dStr, "\"", 1);
for (j = 0; j < len; j++) {
if (arg[j] == '\\' || arg[j] == '"') {
Jsi_DSAppendLen(&dStr, "\\", 1);
}
Jsi_DSAppendLen(&dStr, &arg[j], 1);
}
Jsi_DSAppendLen(&dStr, "\"", 1);
}
Jsi_DSFree(&eStr);
}
#ifdef __WIN32
Jsi_DSAppendLen(&dStr, "\"", 1);
#endif
rc = system(Jsi_DSValue(&dStr));
Jsi_DSFree(&dStr);
return rc;
}
void Jsi_Puts(Jsi_Interp* interp, Jsi_Value *v, int flags)
{
int quote = (flags&JSI_OUTPUT_QUOTE);
int iserr = (flags&JSI_OUTPUT_STDERR);
Jsi_DString dStr = {};
const char *cp = Jsi_ValueString(interp, v, 0);
if (cp) {
fprintf((iserr?stderr:stdout),"%s", cp);
return;
}
Jsi_DSInit(&dStr);
Jsi_ValueGetDString(interp, v, &dStr, quote);
fprintf((iserr?stderr:stdout),"%s",Jsi_DSValue(&dStr));
Jsi_DSFree(&dStr);
return;
}
/* Collect and execute code from stdin. The first byte of flags are passed to Jsi_ValueGetDString(). */
int Jsi_Interactive(Jsi_Interp* interp, int flags) {
int rc = 0, done = 0, len, quote = (flags & 0xff), istty = 1;
char *prompt = "# ", *buf;
Jsi_DString dStr;
Jsi_DSInit(&dStr);
#ifndef __WIN32
istty = isatty(fileno(stdin));
#else
istty = _isatty(_fileno(stdin));
#endif
#ifdef HAVE_READLINE
Jsi_DString dHist = {};
char *hist = NULL;
if(interp->noreadline == 0 && !interp->parent)
{
hist = Jsi_NormalPath(interp, "~/.jsish_history", &dHist);
if (hist)
read_history(hist);
}
#endif
interp->level++;
while (done==0 && interp->exited==0) {
buf = get_inputline(istty, prompt);
if (buf) {
Jsi_DSAppend(&dStr, buf, NULL);
free(buf);
} else {
done = 1;
}
len = Jsi_DSLength(&dStr);
if (done && len == 0)
break;
buf = Jsi_DSValue(&dStr);
if (done == 0 && (!balanced(buf))) {
prompt = "> ";
if (len<5)
break;
continue;
}
prompt = "# ";
while ((len = Jsi_Strlen(buf))>0 && (isspace(buf[len-1])))
buf[len-1] = 0;
if (buf[0] == 0)
continue;
/* Convenience: add semicolon to "var" statements (required by parser). */
if (strncmp(buf,"var ", 4) == 0 && strchr(buf, '\n')==NULL && strchr(buf, ';')==NULL)
strcat(buf, ";");
rc = Jsi_EvalString(interp, buf, JSI_EVAL_RETURN);
if (interp->exited)
break;
if (rc == 0) {
if (interp->ret.vt != JSI_VT_UNDEF || interp->noUndef==0) {
Jsi_DString eStr = {};
fputs(Jsi_ValueGetDString(interp,&interp->ret, &eStr, quote), stdout);
Jsi_DSFree(&eStr);
fputs("\n", stdout);
}
} else if (!interp->exited) {
fputs("ERROR\n", stderr);
}
Jsi_DSSetLength(&dStr, 0);
len = 0;
}
interp->level--;
#ifdef HAVE_READLINE
if (hist) {
stifle_history(100);
write_history(hist);
}
Jsi_DSFree(&dHist);
#endif
Jsi_DSFree(&dStr);
if (interp->exited && interp->level <= 0)
{
rc = interp->exitCode;
Jsi_InterpDelete(interp);
}
return rc;
}
char *JsiWinBuildCommandLine(Jsi_Interp *interp, char **argv, Jsi_DString *dStr)
{
char *start, *special;
int quote, i;
Jsi_DSInit(dStr);
for (i = 0; argv[i]; i++) {
if (i > 0) {
Jsi_DSAppendLen(dStr, " ", 1);
}
if (argv[i][0] == '\0') {
quote = JSI_OUTPUT_QUOTE;
}
else {
quote = 0;
for (start = argv[i]; *start != '\0'; start++) {
if (isspace(UCHAR(*start))) {
quote = JSI_OUTPUT_QUOTE;
break;
}
}
}
if (quote) {
Jsi_DSAppendLen(dStr, "\"" , 1);
}
start = argv[i];
for (special = argv[i]; ; ) {
if ((*special == '\\') && (special[1] == '\\' ||
special[1] == '"' || (quote && special[1] == '\0'))) {
Jsi_DSAppendLen(dStr, start, special - start);
start = special;
while (1) {
special++;
if (*special == '"' || (quote && *special == '\0')) {
/*
* N backslashes followed a quote -> insert
* N * 2 + 1 backslashes then a quote.
*/
Jsi_DSAppendLen(dStr, start, special - start);
break;
}
if (*special != '\\') {
break;
}
}
Jsi_DSAppendLen(dStr, start, special - start);
start = special;
}
if (*special == '"') {
if (special == start) {
Jsi_DSAppendLen(dStr, "\"", 1);
}
else {
Jsi_DSAppendLen(dStr, start, special - start);
}
Jsi_DSAppendLen(dStr, "\\\"", 2);
start = special + 1;
}
if (*special == '\0') {
break;
}
special++;
}
Jsi_DSAppendLen(dStr, start, special - start);
if (quote) {
Jsi_DSAppendLen(dStr, "\"", 1);
}
}
return Jsi_DSValue(dStr);
}
/**
* Apply the printf-like format in fmtObjPtr with the given arguments.
*
* Returns a new object with zero reference count if OK, or NULL on error.
*/
int Jsi_FormatString(Jsi_Interp *interp, Jsi_Value *args, Jsi_DString *dStr)
{
const char *span, *format, *formatEnd, *msg;
int numBytes = 0, argIndex = 1, gotXpg = 0, gotSequential = 0, argCnt;
static const char * const mixedXPG =
"cannot mix \"%\" and \"%n$\" conversion specifiers";
static const char * const badIndex[2] = {
"not enough arguments for all format specifiers",
"\"%n$\" argument index out of range"
};
int formatLen;
Jsi_Value *v;
/* A single buffer is used to store numeric fields (with sprintf())
* This buffer is allocated/reallocated as necessary
*/
char stat_buf[100], *num_buffer = stat_buf;
int num_buffer_size = sizeof(stat_buf);
argCnt = Jsi_ValueGetLength(interp, args);
if (argCnt<1) {
msg = "missing format";
goto errorMsg;
}
format = Jsi_ValueArrayIndexToStr(interp, args,0, &formatLen);
span = format;
formatEnd = format + formatLen;
Jsi_DSInit(dStr);
while (format != formatEnd) {
char *end;
int gotMinus, sawFlag;
int gotPrecision, useShort, useLong;
long width, precision;
int newXpg;
int ch;
int step;
int doubleType;
char pad = ' ';
char spec[2*JSI_INTEGER_SPACE + 12];
char *p;
int formatted_chars;
int formatted_bytes;
const char *formatted_buf = NULL;
step = jsi_utf8_tounicode(format, &ch);
format += step;
if (ch != '%') {
numBytes += step;
continue;
}
if (numBytes) {
Jsi_DSAppendLen(dStr, span, numBytes);
numBytes = 0;
}
/*
* Saw a % : process the format specifier.
*
* Step 0. Handle special case of escaped format marker (i.e., %%).
*/
step = jsi_utf8_tounicode(format, &ch);
if (ch == '%') {
span = format;
numBytes = step;
format += step;
continue;
}
/*
* Step 1. XPG3 position specifier
*/
newXpg = 0;
if (isdigit(ch)) {
int position = strtoul(format, &end, 10);
if (*end == '$') {
newXpg = 1;
argIndex = position - 1;
format = end + 1;
step = jsi_utf8_tounicode(format, &ch);
}
}
if (newXpg) {
if (gotSequential) {
msg = mixedXPG;
goto errorMsg;
}
gotXpg = 1;
} else {
if (gotXpg) {
msg = mixedXPG;
goto errorMsg;
}
gotSequential = 1;
}
if ((argIndex < 0) || (argIndex >= argCnt)) {
msg = badIndex[gotXpg];
goto errorMsg;
}
/*
* Step 2. Set of flags. Also build up the sprintf spec.
*/
p = spec;
*p++ = '%';
gotMinus = 0;
sawFlag = 1;
do {
switch (ch) {
case '-':
gotMinus = 1;
break;
case '0':
pad = ch;
break;
case ' ':
case '+':
case '#':
break;
default:
sawFlag = 0;
continue;
}
*p++ = ch;
format += step;
step = jsi_utf8_tounicode(format, &ch);
} while (sawFlag);
/*
* Step 3. Minimum field width.
*/
width = 0;
if (isdigit(ch)) {
width = strtoul(format, &end, 10);
format = end;
step = jsi_utf8_tounicode(format, &ch);
} else if (ch == '*') {
if (argIndex >= argCnt - 1) {
msg = badIndex[gotXpg];
goto errorMsg;
}
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetLongFromValue(interp, v, &width) != JSI_OK) {
goto error;
}
if (width < 0) {
width = -width;
if (!gotMinus) {
*p++ = '-';
gotMinus = 1;
}
}
argIndex++;
format += step;
step = jsi_utf8_tounicode(format, &ch);
}
/*
* Step 4. Precision.
*/
gotPrecision = precision = 0;
if (ch == '.') {
gotPrecision = 1;
format += step;
step = jsi_utf8_tounicode(format, &ch);
}
if (isdigit(ch)) {
precision = strtoul(format, &end, 10);
format = end;
step = jsi_utf8_tounicode(format, &ch);
} else if (ch == '*') {
if (argIndex >= argCnt - 1) {
msg = badIndex[gotXpg];
goto errorMsg;
}
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetLongFromValue(interp, v, &precision) != JSI_OK) {
goto error;
}
/*
* TODO: Check this truncation logic.
*/
if (precision < 0) {
precision = 0;
}
argIndex++;
format += step;
step = jsi_utf8_tounicode(format, &ch);
}
/*
* Step 5. Length modifier.
*/
useShort = 0;
useLong = 0;
if (ch == 'h') {
useShort = 1;
format += step;
step = jsi_utf8_tounicode(format, &ch);
} else if (ch == 'l') {
useLong = 1;
format += step;
step = jsi_utf8_tounicode(format, &ch);
if (ch == 'l') {
format += step;
step = jsi_utf8_tounicode(format, &ch);
}
}
format += step;
span = format;
/*
* Step 6. The actual conversion character.
*/
if (ch == 'i') {
ch = 'd';
}
doubleType = 0;
/* Each valid conversion will set:
* formatted_buf - the result to be added
* formatted_chars - the length of formatted_buf in characters
* formatted_bytes - the length of formatted_buf in bytes
*/
switch (ch) {
case '\0':
msg = "format string ended in middle of field specifier";
goto errorMsg;
case 's': {
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetStringFromValue(interp, v, &formatted_buf) != JSI_OK)
goto error;
formatted_bytes =
formatted_chars = Jsi_Strlen(formatted_buf);
if (gotPrecision && (precision < formatted_chars)) {
/* Need to build a (null terminated) truncated string */
formatted_chars = precision;
formatted_bytes = jsi_utf8_index(formatted_buf, precision);
}
break;
}
case 'c': {
Jsi_Wide code;
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetWideFromValue(interp, v, &code) != JSI_OK) {
goto error;
}
/* Just store the value in the 'spec' buffer */
formatted_bytes = jsi_utf8_fromunicode(spec, code);
formatted_buf = spec;
formatted_chars = 1;
break;
}
case 'e':
case 'E':
case 'f':
case 'g':
case 'G':
doubleType = 1;
/* fall through */
case 'd':
case 'u':
case 'o':
case 'x':
case 'X': {
Jsi_Wide w;
Jsi_Number d;
int length;
/* Fill in the width and precision */
if (width) {
p += sprintf(p, "%ld", width);
}
if (gotPrecision) {
p += sprintf(p, ".%ld", precision);
}
/* Now the modifier, and get the actual value here */
if (doubleType) {
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetDoubleFromValue(interp, v, &d) != JSI_OK) {
goto error;
}
length = MAX_FLOAT_WIDTH;
}
else {
v = Jsi_ValueArrayIndex(interp, args, argIndex);
if (Jsi_GetWideFromValue(interp, v, &w) != JSI_OK) {
goto error;
}
length = JSI_INTEGER_SPACE;
if (useShort) {
*p++ = 'h';
if (ch == 'd') {
w = (short)w;
}
else {
w = (unsigned short)w;
}
}
else {
*p++ = 'l';
#ifdef HAVE_LONG_LONG
if (useLong && sizeof(long long) == sizeof(Jsi_Wide)) {
*p++ = 'l';
}
#endif
}
}
*p++ = (char) ch;
*p = '\0';
/* Adjust length for width and precision */
if (width > length) {
length = width;
}
if (gotPrecision) {
length += precision;
}
/* Increase the size of the buffer if needed */
if (num_buffer_size < length + 1) {
num_buffer_size = length + 1;
num_buffer = Jsi_Realloc((num_buffer==stat_buf?NULL:num_buffer), num_buffer_size);
}
if (doubleType) {
snprintf(num_buffer, length + 1, spec, d);
}
else {
formatted_bytes = snprintf(num_buffer, length + 1, spec, w);
}
formatted_chars = formatted_bytes = strlen(num_buffer);
formatted_buf = num_buffer;
break;
}
default: {
/* Just reuse the 'spec' buffer */
spec[0] = ch;
spec[1] = '\0';
Jsi_LogError("bad field specifier \"%s\"", spec);
goto error;
}
}
if (!gotMinus) {
while (formatted_chars < width) {
Jsi_DSAppendLen(dStr, &pad, 1);
formatted_chars++;
}
}
Jsi_DSAppendLen(dStr, formatted_buf, formatted_bytes);
while (formatted_chars < width) {
Jsi_DSAppendLen(dStr, &pad, 1);
formatted_chars++;
}
argIndex += gotSequential;
}
if (numBytes) {
Jsi_DSAppendLen(dStr, span, numBytes);
}
if (num_buffer!=stat_buf)
Jsi_Free(num_buffer);
return JSI_OK;
errorMsg:
Jsi_LogError("%s", msg);
error:
Jsi_DSFree(dStr);
if (num_buffer!=stat_buf)
Jsi_Free(num_buffer);
return JSI_ERROR;
}
