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Add strtok2 which fixes a trim issue with strtok (bug 3993, r=arkshine)
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@ -851,11 +851,87 @@ static cell AMX_NATIVE_CALL amx_strtok(AMX *amx, cell *params)
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return 1;
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}
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// Same as amx_strtok but fixes and expands trim, returns token pos if token was found, -1 otherwise
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static cell AMX_NATIVE_CALL amx_strtok2(AMX *amx, cell *params)
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{
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int left_pos = 0, right_pos = 0, len, pos = -1;
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unsigned int i = 0;
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char *string = get_amxstring(amx, params[1], 0, len);
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char *left = new char[len + 1], *right = new char[len + 1];
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int left_max = params[3], right_max = params[5];
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char token = static_cast<char>(params[6]);
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/* Trim flags:
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1 - ltrim left
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2 - rtrim left
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4 - ltrim right
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8 - rtrim right
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*/
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int trim = params[7];
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// ltrim left
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if (trim & 1 && isspace(string[i]))
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{
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while (isspace(string[++i]));
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}
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for (; i < (unsigned int) len; ++i)
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{
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if (string[i] == token)
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{
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pos = i;
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++i;
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break;
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}
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left[left_pos++] = string[i];
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}
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// rtrim left
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if (trim & 2 && left_pos && isspace(left[left_pos - 1]))
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{
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while (--left_pos >= 0 && isspace(left[left_pos]));
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++left_pos;
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}
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// ltrim right
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if (trim & 4 && isspace(string[i]))
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{
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while (isspace(string[++i]));
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}
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for (; i < (unsigned int) len; ++i)
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{
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right[right_pos++] = string[i];
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}
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// rtrim right
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if (trim & 8 && right_pos && isspace(right[right_pos - 1]))
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{
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while (--right_pos >= 0 && isspace(right[right_pos]));
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++right_pos;
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}
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right[right_pos] = 0;
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left[left_pos] = 0;
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set_amxstring(amx, params[2], left, left_max);
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set_amxstring(amx, params[4], right, right_max);
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delete [] left;
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delete [] right;
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return pos;
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}
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//added by BAILOPAN
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//Takes a string and breaks it into a 1st param and rest params
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//strbreak(String[], First[], FirstLen, Rest[], RestLen)
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static cell AMX_NATIVE_CALL strbreak(AMX *amx, cell *params) /* 5 param */
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{
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int _len;
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bool in_quote = false;
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bool had_quotes = false;
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@ -1156,6 +1232,7 @@ AMX_NATIVE_INFO string_Natives[] =
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{"trim", amx_trim},
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{"ucfirst", amx_ucfirst},
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{"strtok", amx_strtok},
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{"strtok2", amx_strtok2},
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{"strlen", amx_strlen},
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{"strcat", n_strcat},
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{"strfind", n_strfind},
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@ -162,6 +162,66 @@ native parse(const text[], ... );
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*/
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native strtok(const text[], Left[], leftLen, Right[], rightLen, token=' ', trimSpaces=0);
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/**
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* Below are the trim flags for strtok2
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*
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* You can specify how the left and right buffers will
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* be trimmed by strtok2. LTRIM trims spaces from the
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* left side. RTRIM trims from the right side.
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*
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* The defines TRIM_INNER, TRIM_OUTER and TRIM_FULL are
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* shorthands for commonly used flag combinations.
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*
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* When the initial string is trimmed, using TRIM_INNER
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* for all subsequent strtok2 calls will ensure that left
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* and right are always trimmed from both sides.
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*
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* Examples:
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* str1[] = " This is * some text "
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* strtok2(str1, left, 24, right, 24, '*', TRIM_FULL)
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* left will be "This is", right will be "some text"
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*
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* str2[] = " Here is | an | example "
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* trim(str2)
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* strtok2(str2, left, 24, right, 24, '|', TRIM_INNER)
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* left will be "Here is", right will be "an | example"
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* strtok2(right, left, 24, right, 24, '|', TRIM_INNER)
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* left will be "an", right will be "example"
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*
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* str3[] = " One - more "
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* strtok2(str3, left, 24, right, 24, '-', TRIM_OUTER)
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* left will be "One ", right will be " more"
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*
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* str4[] = " Final . example "
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* strtok2(str4, left, 24, right, 24, '.', LTRIM_LEFT|LTRIM_RIGHT)
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* left will be "Final ", right will be "example "
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*/
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#define LTRIM_LEFT (1<<0)
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#define RTRIM_LEFT (1<<1)
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#define LTRIM_RIGHT (1<<2)
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#define RTRIM_RIGHT (1<<3)
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#define TRIM_INNER RTRIM_LEFT|LTRIM_RIGHT
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#define TRIM_OUTER LTRIM_LEFT|RTRIM_RIGHT
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#define TRIM_FULL TRIM_OUTER|TRIM_INNER
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/**
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* Breaks a string in two by token
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*
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* Only available in 1.8.3 and above
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*
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* @param text String to tokenize
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* @param left Buffer to store left half
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* @param llen Size of left buffer
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* @param right Buffer to store right half
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* @param rlen Size of right buffer
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* @param token Token to split by
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* @param trim Flags for trimming behavior, see above
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*
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* @return Returns position of token in string if found,
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* -1 if token was not found
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*/
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native strtok2(const text[], left[], const llen, right[], const rlen, const token = ' ', const trim = 0);
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/* Gets parameters from text one at a time
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It breaks a string into the first parameter and the rest of the parameters
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