diff options
Diffstat (limited to 'core/ustring.cpp')
-rw-r--r-- | core/ustring.cpp | 307 |
1 files changed, 302 insertions, 5 deletions
diff --git a/core/ustring.cpp b/core/ustring.cpp index 581cc29440..497e8f29ed 100644 --- a/core/ustring.cpp +++ b/core/ustring.cpp @@ -34,6 +34,7 @@ #include "io/md5.h" #include "ucaps.h" #include "color.h" +#include "variant.h" #define MAX_DIGITS 6 #define UPPERCASE(m_c) (((m_c)>='a' && (m_c)<='z')?((m_c)-('a'-'A')):(m_c)) #define LOWERCASE(m_c) (((m_c)>='A' && (m_c)<='Z')?((m_c)+('a'-'A')):(m_c)) @@ -481,7 +482,7 @@ void String::erase(int p_pos, int p_chars) { String String::capitalize() const { - String aux=this->replace("_"," ").to_lower(); + String aux=this->camelcase_to_underscore().replace("_"," ").to_lower(); String cap; for (int i=0;i<aux.get_slice_count(" ");i++) { @@ -497,6 +498,29 @@ String String::capitalize() const { return cap; } + + +String String::camelcase_to_underscore() const { + const CharType * cstr = c_str(); + String newString; + const char A = 'A', Z = 'Z'; + int startIndex = 0; + + for ( int i = 1; i < this->size()-1; i++ ) { + bool isCapital = cstr[i] >= A && cstr[i] <= Z; + + if ( isCapital ) { + newString += "_" + this->substr(startIndex, i-startIndex); + startIndex = i; + } + } + + newString += "_" + this->substr(startIndex, this->size()-startIndex); + + return newString; +} + + int String::get_slice_count(String p_splitter) const{ if (empty()) @@ -981,7 +1005,7 @@ String String::num(double p_num,int p_decimals) { } -String String::num_int64(int64_t p_num) { +String String::num_int64(int64_t p_num, int base, bool capitalize_hex) { bool sign=p_num<0; int64_t num=ABS(p_num); @@ -990,7 +1014,7 @@ String String::num_int64(int64_t p_num) { int chars=0; do { - n/=10; + n/=base; chars++; } while(n); @@ -1002,8 +1026,15 @@ String String::num_int64(int64_t p_num) { c[chars]=0; n=num; do { - c[--chars]='0'+(n%10); - n/=10; + int mod = n%base; + if (mod >= 10) { + char a = (capitalize_hex ? 'A' : 'a'); + c[--chars]=a+(mod - 10); + } else { + c[--chars]='0'+mod; + } + + n/=base; } while(n); if (sign) @@ -3518,4 +3549,270 @@ String rtoss(double p_val) { return String::num_scientific(p_val); } +// Right-pad with a character. +String String::rpad(int min_length, const String& character) const { + String s = *this; + int padding = min_length - s.length(); + if (padding > 0) { + for (int i = 0; i < padding; i++) s = s + character; + } + + return s; +} +// Left-pad with a character. +String String::lpad(int min_length, const String& character) const { + String s = *this; + int padding = min_length - s.length(); + if (padding > 0) { + for (int i = 0; i < padding; i++) s = character + s; + } + return s; +} + +// sprintf is implemented in GDScript via: +// "fish %s pie" % "frog" +// "fish %s %d pie" % ["frog", 12] +// In case of an error, the string returned is the error description and "error" is true. +String String::sprintf(const Array& values, bool* error) const { + String formatted; + CharType* self = (CharType*)c_str(); + int num_items = values.size(); + bool in_format = false; + int value_index = 0; + int min_chars; + int min_decimals; + bool in_decimals; + bool pad_with_zeroes; + bool left_justified; + bool show_sign; + + *error = true; + + for (; *self; self++) { + const CharType c = *self; + + if (in_format) { // We have % - lets see what else we get. + switch (c) { + case '%': { // Replace %% with % + formatted += chr(c); + in_format = false; + break; + } + case 'd': // Integer (signed) + case 'o': // Octal + case 'x': // Hexadecimal (lowercase) + case 'X': { // Hexadecimal (uppercase) + if (value_index >= values.size()) { + return "not enough arguments for format string"; + } + + if (!values[value_index].is_num()) { + return "a number is required"; + } + + int64_t value = values[value_index]; + int base; + bool capitalize = false; + switch (c) { + case 'd': base = 10; break; + case 'o': base = 8; break; + case 'x': base = 16; break; + case 'X': base = 16; capitalize = true; break; + } + // Get basic number. + String str = String::num_int64(value, base, capitalize); + + // Sign. + if (show_sign && value >= 0) { + str = str.insert(0, "+"); + } + + // Padding. + String pad_char = pad_with_zeroes ? String("0") : String(" "); + if (left_justified) { + str = str.rpad(min_chars, pad_char); + } else { + str = str.lpad(min_chars, pad_char); + } + + formatted += str; + ++value_index; + in_format = false; + + break; + } + case 'f': { // Float + if (value_index >= values.size()) { + return "not enough arguments for format string"; + } + + if (!values[value_index].is_num()) { + return "a number is required"; + } + + double value = values[value_index]; + String str = String::num(value, min_decimals); + + // Pad decimals out. + str = str.pad_decimals(min_decimals); + + // Show sign + if (show_sign && value >= 0) { + str = str.insert(0, "+"); + } + + // Padding + if (left_justified) { + str = str.rpad(min_chars); + } else { + str = str.lpad(min_chars); + } + + formatted += str; + ++value_index; + in_format = false; + + break; + } + case 's': { // String + if (value_index >= values.size()) { + return "not enough arguments for format string"; + } + + String str = values[value_index]; + // Padding. + if (left_justified) { + str = str.rpad(min_chars); + } else { + str = str.lpad(min_chars); + } + + formatted += str; + ++value_index; + in_format = false; + break; + } + case 'c': { + if (value_index >= values.size()) { + return "not enough arguments for format string"; + } + + // Convert to character. + String str; + if (values[value_index].is_num()) { + int value = values[value_index]; + if (value < 0) { + return "unsigned byte integer is lower than maximum"; + } else if (value > 255) { + return "unsigned byte integer is greater than maximum"; + } + str = chr(values[value_index]); + } else if (values[value_index].get_type() == Variant::STRING) { + str = values[value_index]; + if (str.length() != 1) { + return "%c requires number or single-character string"; + } + } else { + return "%c requires number or single-character string"; + } + + // Padding. + if (left_justified) { + str = str.rpad(min_chars); + } else { + str = str.lpad(min_chars); + } + + formatted += str; + ++value_index; + in_format = false; + break; + } + case '-': { // Left justify + left_justified = true; + break; + } + case '+': { // Show + if positive. + show_sign = true; + break; + } + case '0': case '1': case '2': case '3': case '4': + case '5': case '6': case '7': case '8': case '9': { + int n = c - '0'; + if (in_decimals) { + min_decimals *= 10; + min_decimals += n; + } else { + if (c == '0' && min_chars == 0) { + pad_with_zeroes = true; + } else { + min_chars *= 10; + min_chars += n; + } + } + break; + } + case '.': { // Float separtor. + if (in_decimals) { + return "too many decimal points in format"; + } + in_decimals = true; + min_decimals = 0; // We want to add the value manually. + break; + } + + case '*': { // Dyanmic width, based on value. + if (value_index >= values.size()) { + return "not enough arguments for format string"; + } + + if (!values[value_index].is_num()) { + return "* wants number"; + } + + int size = values[value_index]; + + if (in_decimals) { + min_decimals = size; + } else { + min_chars = size; + } + + ++value_index; + break; + } + + default: { + return "unsupported format character"; + } + } + } else { // Not in format string. + switch (c) { + case '%': + in_format = true; + // Back to defaults: + min_chars = 0; + min_decimals = 6; + pad_with_zeroes = false; + left_justified = false; + show_sign = false; + in_decimals = false; + break; + default: + formatted += chr(c); + } + } + } + + if (in_format) { + return "incomplete format"; + } + + if (value_index != values.size()) { + return "not all arguments converted during string formatting"; + } + + *error = false; + return formatted; +} |