269 lines
8.6 KiB
C++
269 lines
8.6 KiB
C++
#include "pseudolocalize.h"
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using namespace std;
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// String basis to generate expansion
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static const String16 k_expansion_string = String16("one two three "
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"four five six seven eight nine ten eleven twelve thirteen "
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"fourteen fiveteen sixteen seventeen nineteen twenty");
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// Special unicode characters to override directionality of the words
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static const String16 k_rlm = String16("\xe2\x80\x8f");
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static const String16 k_rlo = String16("\xE2\x80\xae");
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static const String16 k_pdf = String16("\xE2\x80\xac");
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// Placeholder marks
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static const String16 k_placeholder_open = String16("\xc2\xbb");
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static const String16 k_placeholder_close = String16("\xc2\xab");
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static const char*
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pseudolocalize_char(const char16_t c)
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{
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switch (c) {
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case 'a': return "\xc3\xa5";
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case 'b': return "\xc9\x93";
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case 'c': return "\xc3\xa7";
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case 'd': return "\xc3\xb0";
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case 'e': return "\xc3\xa9";
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case 'f': return "\xc6\x92";
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case 'g': return "\xc4\x9d";
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case 'h': return "\xc4\xa5";
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case 'i': return "\xc3\xae";
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case 'j': return "\xc4\xb5";
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case 'k': return "\xc4\xb7";
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case 'l': return "\xc4\xbc";
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case 'm': return "\xe1\xb8\xbf";
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case 'n': return "\xc3\xb1";
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case 'o': return "\xc3\xb6";
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case 'p': return "\xc3\xbe";
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case 'q': return "\x51";
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case 'r': return "\xc5\x95";
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case 's': return "\xc5\xa1";
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case 't': return "\xc5\xa3";
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case 'u': return "\xc3\xbb";
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case 'v': return "\x56";
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case 'w': return "\xc5\xb5";
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case 'x': return "\xd1\x85";
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case 'y': return "\xc3\xbd";
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case 'z': return "\xc5\xbe";
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case 'A': return "\xc3\x85";
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case 'B': return "\xce\xb2";
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case 'C': return "\xc3\x87";
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case 'D': return "\xc3\x90";
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case 'E': return "\xc3\x89";
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case 'G': return "\xc4\x9c";
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case 'H': return "\xc4\xa4";
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case 'I': return "\xc3\x8e";
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case 'J': return "\xc4\xb4";
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case 'K': return "\xc4\xb6";
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case 'L': return "\xc4\xbb";
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case 'M': return "\xe1\xb8\xbe";
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case 'N': return "\xc3\x91";
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case 'O': return "\xc3\x96";
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case 'P': return "\xc3\x9e";
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case 'Q': return "\x71";
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case 'R': return "\xc5\x94";
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case 'S': return "\xc5\xa0";
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case 'T': return "\xc5\xa2";
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case 'U': return "\xc3\x9b";
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case 'V': return "\xce\xbd";
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case 'W': return "\xc5\xb4";
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case 'X': return "\xc3\x97";
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case 'Y': return "\xc3\x9d";
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case 'Z': return "\xc5\xbd";
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case '!': return "\xc2\xa1";
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case '?': return "\xc2\xbf";
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case '$': return "\xe2\x82\xac";
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default: return NULL;
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}
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}
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static bool
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is_possible_normal_placeholder_end(const char16_t c) {
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switch (c) {
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case 's': return true;
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case 'S': return true;
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case 'c': return true;
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case 'C': return true;
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case 'd': return true;
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case 'o': return true;
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case 'x': return true;
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case 'X': return true;
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case 'f': return true;
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case 'e': return true;
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case 'E': return true;
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case 'g': return true;
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case 'G': return true;
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case 'a': return true;
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case 'A': return true;
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case 'b': return true;
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case 'B': return true;
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case 'h': return true;
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case 'H': return true;
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case '%': return true;
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case 'n': return true;
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default: return false;
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}
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}
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String16
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pseudo_generate_expansion(const unsigned int length) {
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String16 result = k_expansion_string;
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const char16_t* s = result.string();
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if (result.size() < length) {
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result += String16(" ");
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result += pseudo_generate_expansion(length - result.size());
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} else {
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int ext = 0;
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// Should contain only whole words, so looking for a space
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for (unsigned int i = length + 1; i < result.size(); ++i) {
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++ext;
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if (s[i] == ' ') {
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break;
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}
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}
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result.remove(length + ext, 0);
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}
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return result;
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}
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/**
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* Converts characters so they look like they've been localized.
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*
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* Note: This leaves escape sequences untouched so they can later be
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* processed by ResTable::collectString in the normal way.
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*/
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String16
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pseudolocalize_string(const String16& source)
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{
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const char16_t* s = source.string();
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String16 result;
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const size_t I = source.size();
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for (size_t i=0; i<I; i++) {
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char16_t c = s[i];
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if (c == '\\') {
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// Escape syntax, no need to pseudolocalize
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if (i<I-1) {
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result += String16("\\");
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i++;
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c = s[i];
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switch (c) {
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case 'u':
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// this one takes up 5 chars
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result += String16(s+i, 5);
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i += 4;
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break;
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case 't':
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case 'n':
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case '#':
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case '@':
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case '?':
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case '"':
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case '\'':
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case '\\':
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default:
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result.append(&c, 1);
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break;
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}
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} else {
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result.append(&c, 1);
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}
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} else if (c == '%') {
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// Placeholder syntax, no need to pseudolocalize
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result += k_placeholder_open;
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bool end = false;
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result.append(&c, 1);
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while (!end && i < I) {
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++i;
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c = s[i];
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result.append(&c, 1);
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if (is_possible_normal_placeholder_end(c)) {
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end = true;
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} else if (c == 't') {
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++i;
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c = s[i];
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result.append(&c, 1);
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end = true;
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}
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}
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result += k_placeholder_close;
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} else if (c == '<' || c == '&') {
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// html syntax, no need to pseudolocalize
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bool tag_closed = false;
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while (!tag_closed && i < I) {
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if (c == '&') {
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String16 escape_text;
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escape_text.append(&c, 1);
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bool end = false;
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size_t htmlCodePos = i;
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while (!end && htmlCodePos < I) {
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++htmlCodePos;
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c = s[htmlCodePos];
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escape_text.append(&c, 1);
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// Valid html code
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if (c == ';') {
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end = true;
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i = htmlCodePos;
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}
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// Wrong html code
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else if (!((c == '#' ||
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(c >= 'a' && c <= 'z') ||
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(c >= 'A' && c <= 'Z') ||
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(c >= '0' && c <= '9')))) {
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end = true;
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}
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}
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result += escape_text;
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if (escape_text != String16("<")) {
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tag_closed = true;
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}
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continue;
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}
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if (c == '>') {
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tag_closed = true;
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result.append(&c, 1);
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continue;
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}
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result.append(&c, 1);
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i++;
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c = s[i];
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}
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} else {
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// This is a pure text that should be pseudolocalized
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const char* p = pseudolocalize_char(c);
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if (p != NULL) {
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result += String16(p);
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} else {
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result.append(&c, 1);
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}
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}
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}
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return result;
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}
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String16
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pseudobidi_string(const String16& source)
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{
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const char16_t* s = source.string();
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String16 result;
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result += k_rlm;
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result += k_rlo;
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for (size_t i=0; i<source.size(); i++) {
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char16_t c = s[i];
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switch(c) {
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case ' ': result += k_pdf;
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result += k_rlm;
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result.append(&c, 1);
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result += k_rlm;
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result += k_rlo;
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break;
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default: result.append(&c, 1);
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break;
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}
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}
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result += k_pdf;
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result += k_rlm;
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return result;
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}
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