mirror of
https://github.com/alliedmodders/amxmodx.git
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311 lines
11 KiB
PHP
Executable File
311 lines
11 KiB
PHP
Executable File
/* Strings manipulation
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*
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* by the AMX Mod X Development Team
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* originally developed by OLO
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*
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* This file is provided as is (no warranties).
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*/
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#if defined _string_included
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#endinput
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#endif
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#define _string_included
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#define charsmax(%1) (sizeof(%1)-1)
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/* Checks if source contains string. On success function
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* returns position in source, on failure returns -1. */
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native contain(const source[],const string[]);
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/* Checks if source contains string with case ignoring. On success function
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* returns position in source, on failure returns -1. */
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native containi(const source[],const string[]);
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/* Replaces given string to another in given text. */
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native replace(text[], len, const what[], const with[]);
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/* Adds one string to another. Last parameter different from 0, specifies
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* how many chars we want to add. Function returns number of all merged chars. */
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native add(dest[],len,const src[],max=0);
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/* Fills string with given format and parameters.
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* Function returns number of copied chars.
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* Example: format(dest,"Hello %s. You are %d years old","Tom",17).
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* If any of your input buffers overlap with the destination buffer,
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* format() falls back to a "copy-back" version as of 1.65. This is
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* slower, so you should using a source string that is the same as
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* the destination.
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*/
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native format(output[] ,len ,const format[] , any:...);
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/* Same as format(), except does not perform a "copy back" check.
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* This means formatex() is faster, but DOES NOT ALLOW this type
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* of call:
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* formatex(buffer, len, "%s", buffer)
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* formatex(buffer, len, buffer, buffer)
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* formatex(buffer, len, "%s", buffer[5])
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* This is because the output is directly stored into "buffer",
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* rather than copied back at the end.
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*/
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native formatex(output[] ,len ,const format[] , any:...);
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/* Replacement for format_args. Much faster and %L compatible.
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* This works exactly like vsnprintf() from C.
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* You must pass in the output buffer and its size,
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* the string to format, and the number of the FIRST variable
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* argument parameter. For example, for:
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* function (a, b, c, ...)
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* You would pass 4 (a is 1, b is 2, c is 3, et cetera).
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* There is no vformatex().
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*/
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native vformat(buffer[], len, const fmt[], vararg);
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/*
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* Same as vformat(), except works in normal style dynamic natives.
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* Instead of passing the format arg string, you can only pass the
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* actual format argument number itself.
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* If you pass 0, it will read the format string from an optional
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* fifth parameter.
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*/
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native vdformat(buffer[], len, fmt_arg, vararg, ...);
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/* Gets parameters from function as formated string. */
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native format_args(output[] ,len ,pos = 0);
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/* Converts number to string. */
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native num_to_str(num,string[],len);
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/* Returns converted string to number. */
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native str_to_num(const string[]);
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/**
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* Parses the 'string' interpreting its content as an integral number of the specified 'base',
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* which is returned as integer value. The function also sets the value of 'endPos' to point
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* to the position of the first character after the number.
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*
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* This is the same as C++ strtol function with a difference on second param.
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*
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* The function first discards as many whitespace characters as necessary until the first
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* non-whitespace character is found. Then, starting from this character, takes as many
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* characters as possible that are valid following a syntax that depends on the 'base' parameter,
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* and interprets them as a numerical value. Finally, a position of the first character following
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* the integer representation in 'string' is stored in 'endPos'.
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*
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* If the value of 'base' is zero, the syntax expected is similar to that of integer constants,
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* which is formed by a succession of :
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* An optional sign character (+ or -)
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* An optional prefix indicating octal or hexadecimal base ("0" or "0x"/"0X" respectively)
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* A sequence of decimal digits (if no base prefix was specified) or either octal or hexadecimal digits if a specific prefix is present
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*
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* If the 'base' value is between 2 and 36, the format expected for the integral number is a succession
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* of any of the valid digits and/or letters needed to represent integers of the specified radix
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* (starting from '0' and up to 'z'/'Z' for radix 36). The sequence may optionally be preceded by
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* a sign (either + or -) and, if base is 16, an optional "0x" or "0X" prefix.
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*
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* If the first sequence of non-whitespace characters in 'string' is not a valid integral number
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* as defined above, or if no such sequence exists because either 'string' is empty or it contains
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* only whitespace characters, no conversion is performed.
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*
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* @param string The string to parse.
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* @param endPos The position of the first character following the number.
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* On success and when containing only numbers, position is at the end of string, meaning equal to 'string' length.
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* On failure, position is sets always to -1.
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* @param base The numerical base (radix) that determines the valid characters and their interpretation.
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* If this is 0, the base used is determined by the format in the sequence.
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* @return On success, the function returns the converted integral number as integer value.
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* If no valid conversion could be performed, a zero value is returned.
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* If the value read is out of the range of representable values by a cell,
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* the function returns 'cellmin' or 'cellmax'.
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*/
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native strtol( const string[], &endPos = -1, base = 0 );
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/* Converts float to string. */
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native float_to_str(Float:fl, string[], len);
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/* Parses a float. */
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native Float:str_to_float(const string[]);
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/* Checks if two strings equal. If len var is set
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* then there are only c chars comapred. */
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native equal(const a[],const b[],c=0);
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/* Checks if two strings equal with case ignoring.
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* If len var is set then there are only c chars comapred. */
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native equali(const a[],const b[],c=0);
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/* Copies one string to another. By len var
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* you may specify max. number of chars to copy. */
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native copy(dest[],len,const src[]);
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/* Copies one string to another until char ch is found.
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* By len var you may specify max. number of chars to copy. */
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native copyc(dest[],len,const src[],ch);
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/* Sets string with given character. */
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native setc(src[],len,ch);
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/* Gets parameters from text.
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* Example: to split text: "^"This is^" the best year",
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* call function like this: parse(text,arg1,len1,arg2,len2,arg3,len3,arg4,len4)
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* and you will get: "This is", "the", "best", "year"
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* Function returns number of parsed parameters. */
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native parse(const text[], ... );
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/* Breaks a string into two halves, by token.
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See strbreak() for doing this with parameters.
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Example:
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str1[] = This *is*some text
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strtok(str1, left, 24, right, 24, '*')
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left will be "This "
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Right will be "is*some text"
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If you use trimSpaces, all spaces are trimmed from Left.
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*/
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native strtok(const text[], Left[], leftLen, Right[], rightLen, token=' ', trimSpaces=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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(A left side and right side of the string)
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Example: to split text: "^"This is^" the best year",
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strbreak(text, arg1, len1, arg2, len2)
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arg1="This is", arg2=the best year
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This is more useful than parse() because you can keep breaking
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any number of arguments */
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native strbreak(const text[], Left[], leftLen, Right[], rightLen);
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/* Strips spaces from the beginning and end of a string. */
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native trim(text[]);
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/* Converts all chars in string to lower case. */
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native strtolower(string[]);
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/* Converts all chars in string to upper case. */
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native strtoupper(string[]);
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/* Make a string's first character uppercase */
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native ucfirst(string[]);
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/* Returns true when value is digit. */
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native isdigit(ch);
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/* Returns true when value is letter. */
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native isalpha(ch);
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/* Returns true when value is space. */
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native isspace(ch);
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/* Returns true when value is letter or digit. */
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native isalnum(ch);
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/* Concatenates a string. Maxlength is the total buffer of the destination. */
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native strcat(dest[], const source[], maxlength);
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/* Finds a string in another string. Returns -1 if not found. */
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native strfind(const string[], const sub[], ignorecase=0, pos=0);
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/* Compares two strings with the C function strcmp(). Returns 0 on equal. */
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native strcmp(const string1[], const string2[], ignorecase=0);
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/* Tests if given string contains only digits. Also, returns false for zero-length strings. */
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stock bool:is_str_num(const sString[])
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{
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new i = 0;
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while (sString[i] && isdigit(sString[i]))
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++i;
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return sString[i] == 0 && i != 0;
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}
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/* It is basically strbreak but you have a delimiter that is more than one character in length.
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You pass the Input string, the Left output, the max length of the left output,
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the right output , the max right length, and then the delimiter string.
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By Suicid3
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*/
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stock split(const szInput[], szLeft[], pL_Max, szRight[], pR_Max, const szDelim[])
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{
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new iEnd = contain(szInput, szDelim);
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new iStart = iEnd + strlen(szDelim);
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//If delimiter isnt in Input just split the string at max lengths
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if (iEnd == -1)
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{
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iStart = copy(szLeft, pL_Max, szInput);
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copy(szRight, pR_Max, szInput[iStart]);
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return;
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}
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//If delimter is in Input then split at input for max lengths
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if (pL_Max >= iEnd)
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copy(szLeft, iEnd, szInput);
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else
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copy(szLeft, pL_Max, szInput);
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copy(szRight, pR_Max, szInput[iStart]);
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return;
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}
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/* Removes a path from szFilePath leaving the name of the file in szFile for a pMax length. */
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stock remove_filepath(const szFilePath[], szFile[], pMax)
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{
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new len = strlen(szFilePath);
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while ((--len >= 0) && (szFilePath[len] != '/') && (szFilePath[len] != '\')) { }
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copy(szFile, pMax, szFilePath[len + 1]);
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return;
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}
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/* Replaces a contained string iteratively.
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* This ensures that no infinite replacements will take place by
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* intelligently moving to the next string position each iteration.
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*/
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stock replace_all(string[], len, const what[], const with[])
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{
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new pos = 0;
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if ((pos = contain(string, what)) == -1)
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{
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return 0;
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}
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new total = 0;
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new with_len = strlen(with);
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new diff = strlen(what) - with_len;
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new total_len = strlen(string);
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new temp_pos = 0;
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while (replace(string[pos], len - pos, what, with) != 0)
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{
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total++;
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/* jump to position after replacement */
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pos += with_len;
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/* update cached length of string */
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total_len -= diff;
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/* will the next call be operating on the last character? */
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if (pos >= total_len)
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{
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break;
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}
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/* find the next position from our offset */
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temp_pos = contain(string[pos], what);
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/* if it's invalid, we're done */
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if (temp_pos == -1)
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{
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break;
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}
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/* otherwise, reposition and update counters */
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pos += temp_pos;
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}
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return total;
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}
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