/*JSON{ "type":"method", "class": "String", "name" : "split",
"description" : "Return an array made by splitting this string up by the separator. eg. ```'1,2,3'.split(',')==[1,2,3]```",
"generate" : "jswrap_string_split",
"params" : [ [ "separator", "JsVar", "The start character index"] ],
"return" : ["JsVar", "Part of this string from start for len characters"]
}*/
JsVar *jswrap_string_split(JsVar *parent, JsVar *split) {
JsVar *array;
int last, idx, arraylen=0;
int splitlen = (int)jsvGetStringLength(split);
int l = (int)jsvGetStringLength(parent) - splitlen;
last = 0;
array = jsvNewWithFlags(JSV_ARRAY);
if (!array) return 0; // out of memory
for (idx=0;idx<=l;idx++) {
if (idx==l || jsvCompareString(parent, split, idx, 0, true)==0) {
JsVar *part = jsvNewFromEmptyString();
if (!part) break; // out of memory
JsVar *idxvar = jsvMakeIntoVariableName(jsvNewFromInteger(arraylen++), part);
if (idxvar) { // could be out of memory
if (idx==l) idx=l+splitlen; // if the last element, do to the end of the string
jsvAppendStringVar(part, parent, last, idx-last);
jsvAddName(array, idxvar);
last = idx+splitlen;
jsvUnLock(idxvar);
}
jsvUnLock(part);
}
}
return array;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "split",
"generate" : "jswrap_string_split",
"params" : [
["separator","JsVar","The start character index"]
],
"return" : ["JsVar","Part of this string from start for len characters"]
}
Return an array made by splitting this string up by the separator. eg. ```'1,2,3'.split(',')==[1,2,3]```
*/
JsVar *jswrap_string_split(JsVar *parent, JsVar *split) {
JsVar *array = jsvNewWithFlags(JSV_ARRAY);
if (!array) return 0; // out of memory
if (jsvIsUndefined(split)) {
jsvArrayPush(array, parent);
return array;
}
split = jsvAsString(split, false);
int idx, last = 0;
int splitlen = jsvIsUndefined(split) ? 0 : (int)jsvGetStringLength(split);
int l = (int)jsvGetStringLength(parent) + 1 - splitlen;
for (idx=0;idx<=l;idx++) {
if (splitlen==0 && idx==0) continue; // special case for where split string is ""
if (idx==l || splitlen==0 || jsvCompareString(parent, split, (size_t)idx, 0, true)==0) {
if (idx==l) {
idx=l+splitlen; // if the last element, do to the end of the string
if (splitlen==0) break;
}
JsVar *part = jsvNewFromStringVar(parent, (size_t)last, (size_t)(idx-last));
if (!part) break; // out of memory
jsvArrayPush(array, part);
jsvUnLock(part);
last = idx+splitlen;
}
}
jsvUnLock(split);
return array;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "startsWith",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_string_startsWith",
"params" : [
["searchString","JsVar","The string to search for"],
["position","int","The start character index (or 0 if not defined)"]
],
"return" : ["bool","`true` if the given characters are found at the beginning of the string, otherwise, `false`."]
}
*/
bool jswrap_string_startsWith(JsVar *parent, JsVar *search, int position) {
if (!jsvIsString(parent)) return false;
JsVar *searchStr = jsvAsString(search);
bool match = false;
if (position >= 0 &&
jsvGetStringLength(searchStr)+position <= jsvGetStringLength(parent))
match = jsvCompareString(parent, searchStr, position,0,true)==0;
jsvUnLock(searchStr);
return match;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "endsWith",
"ifndef" : "SAVE_ON_FLASH",
"generate" : "jswrap_string_endsWith",
"params" : [
["searchString","JsVar","The string to search for"],
["length","JsVar","The 'end' of the string - if left off the actual length of the string is used"]
],
"return" : ["bool","`true` if the given characters are found at the end of the string, otherwise, `false`."]
}
*/
bool jswrap_string_endsWith(JsVar *parent, JsVar *search, JsVar *length) {
if (!jsvIsString(parent)) return false;
int position = jsvIsNumeric(length) ? jsvGetInteger(length) : (int)jsvGetStringLength(parent);
JsVar *searchStr = jsvAsString(search);
position -= jsvGetStringLength(searchStr);
bool match = false;
if (position >= 0 &&
jsvGetStringLength(searchStr)+position <= jsvGetStringLength(parent))
match = jsvCompareString(parent, searchStr, position,0,true)==0;
jsvUnLock(searchStr);
return match;
}
/*JSON{ "type":"method", "class": "String", "name" : "indexOf",
"description" : "Return the index of substring in this string, or -1 if not found",
"generate" : "jswrap_string_indexOf",
"params" : [ [ "substring", "JsVar", "The string to search for"] ],
"return" : ["int", "The index of the string, or -1 if not found"]
}*/
JsVarInt jswrap_string_indexOf(JsVar *parent, JsVar *v) {
// slow, but simple!
v = jsvAsString(v, false);
if (!v) return 0; // out of memory
int idx = -1;
int l = (int)jsvGetStringLength(parent) - (int)jsvGetStringLength(v);
for (idx=0;idx<l;idx++) {
if (jsvCompareString(parent, v, idx, 0, true)==0) {
jsvUnLock(v);
return idx;
}
}
jsvUnLock(v);
return -1;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "lastIndexOf",
"generate_full" : "jswrap_string_indexOf(parent, substring, fromIndex, true)",
"params" : [
["substring","JsVar","The string to search for"],
["fromIndex","JsVar","Index to search from"]
],
"return" : ["int32","The index of the string, or -1 if not found"]
}
Return the last index of substring in this string, or -1 if not found
*/
int jswrap_string_indexOf(JsVar *parent, JsVar *substring, JsVar *fromIndex, bool lastIndexOf) {
if (!jsvIsString(parent)) return 0;
// slow, but simple!
substring = jsvAsString(substring, false);
if (!substring) return 0; // out of memory
int parentLength = (int)jsvGetStringLength(parent);
int subStringLength = (int)jsvGetStringLength(substring);
if (subStringLength > parentLength) {
jsvUnLock(substring);
return -1;
}
int lastPossibleSearch = parentLength - subStringLength;
int idx, dir, end;
if (!lastIndexOf) { // normal indexOf
dir = 1;
end = lastPossibleSearch+1;
idx = 0;
if (jsvIsNumeric(fromIndex)) {
idx = (int)jsvGetInteger(fromIndex);
if (idx<0) idx=0;
if (idx>end) idx=end;
}
} else {
dir = -1;
end = -1;
idx = lastPossibleSearch;
if (jsvIsNumeric(fromIndex)) {
idx = (int)jsvGetInteger(fromIndex);
if (idx<0) idx=0;
if (idx>lastPossibleSearch) idx=lastPossibleSearch;
}
}
for (;idx!=end;idx+=dir) {
if (jsvCompareString(parent, substring, (size_t)idx, 0, true)==0) {
jsvUnLock(substring);
return idx;
}
}
jsvUnLock(substring);
return -1;
}
/*JSON{
"type" : "method",
"class" : "String",
"name" : "split",
"generate" : "jswrap_string_split",
"params" : [
["separator","JsVar","The separator `String` or `RegExp` to use"]
],
"return" : ["JsVar","Part of this string from start for len characters"]
}
Return an array made by splitting this string up by the separator. eg. ```'1,2,3'.split(',')==['1', '2', '3']```
Regular Expressions can also be used to split strings, eg. `'1a2b3 4'.split(/[^0-9]/)==['1', '2', '3', '4']`.
*/
JsVar *jswrap_string_split(JsVar *parent, JsVar *split) {
if (!jsvIsString(parent)) return 0;
JsVar *array = jsvNewEmptyArray();
if (!array) return 0; // out of memory
if (jsvIsUndefined(split)) {
jsvArrayPush(array, parent);
return array;
}
#ifndef SAVE_ON_FLASH
// Use RegExp if one is passed in
if (jsvIsInstanceOf(split, "RegExp")) {
unsigned int last = 0;
JsVar *match;
jsvObjectSetChildAndUnLock(split, "lastIndex", jsvNewFromInteger(0));
match = jswrap_regexp_exec(split, parent);
while (match && !jsvIsNull(match)) {
// get info about match
JsVar *matchStr = jsvGetArrayItem(match,0);
JsVarInt idx = jsvGetIntegerAndUnLock(jsvObjectGetChild(match,"index",0));
JsVarInt len = (JsVarInt)jsvGetStringLength(matchStr);
jsvUnLock(matchStr);
// do the replacement
jsvArrayPushAndUnLock(array, jsvNewFromStringVar(parent, (size_t)last, (size_t)(idx-last)));
last = idx+len;
// search again
jsvUnLock(match);
jsvObjectSetChildAndUnLock(split, "lastIndex", jsvNewFromInteger(last));
match = jswrap_regexp_exec(split, parent);
}
jsvUnLock(match);
jsvObjectSetChildAndUnLock(split, "lastIndex", jsvNewFromInteger(0));
// add remaining string after last match
if (last<=jsvGetStringLength(parent))
jsvArrayPushAndUnLock(array, jsvNewFromStringVar(parent, (size_t)last, JSVAPPENDSTRINGVAR_MAXLENGTH));
return array;
}
#endif
split = jsvAsString(split);
int idx, last = 0;
int splitlen = jsvIsUndefined(split) ? 0 : (int)jsvGetStringLength(split);
int l = (int)jsvGetStringLength(parent) + 1 - splitlen;
for (idx=0;idx<=l;idx++) {
if (splitlen==0 && idx==0) continue; // special case for where split string is ""
if (idx==l || splitlen==0 || jsvCompareString(parent, split, (size_t)idx, 0, true)==0) {
if (idx==l) {
idx=l+splitlen; // if the last element, do to the end of the string
if (splitlen==0) break;
}
JsVar *part = jsvNewFromStringVar(parent, (size_t)last, (size_t)(idx-last));
if (!part) break; // out of memory
jsvArrayPush(array, part);
jsvUnLock(part);
last = idx+splitlen;
}
}
jsvUnLock(split);
return array;
}
