package com.stevesoft.pat;\r
\r
/** This class provides a method for parsing the "s/.../.../" constructs\r
-of Regex.perlCode.\r
-@see Regex#perlCode\r
-*/\r
-class parsePerl {\r
- final static char close(char c) {\r
- // This switch statement does not behave\r
- // properly when compiled with jdk1.1.5\r
- // and the -O flag.\r
- /*\r
- switch(c) {\r
- case '[':\r
- return ']';\r
- case '(':\r
- return ')';\r
- case '{':\r
- return '}';\r
- }\r
- return c;*/\r
- if(c == '<')\r
- return '>';\r
- if(c == '[')\r
- return ']';\r
- if(c == '(')\r
- return ')';\r
- if(c == '{')\r
- return '}';\r
- return c;\r
+ of Regex.perlCode.\r
+ @see Regex#perlCode\r
+ */\r
+class parsePerl\r
+{\r
+ final static char close(char c)\r
+ {\r
+ // This switch statement does not behave\r
+ // properly when compiled with jdk1.1.5\r
+ // and the -O flag.\r
+ /*\r
+ switch(c) {\r
+ case '[':\r
+ return ']';\r
+ case '(':\r
+ return ')';\r
+ case '{':\r
+ return '}';\r
+ }\r
+ return c;*/\r
+ if (c == '<')\r
+ {\r
+ return '>';\r
}\r
-\r
- final public static String codify(String s,boolean keepbs) {\r
- return codify(s,0,s.length(),keepbs);\r
+ if (c == '[')\r
+ {\r
+ return ']';\r
+ }\r
+ if (c == '(')\r
+ {\r
+ return ')';\r
+ }\r
+ if (c == '{')\r
+ {\r
+ return '}';\r
}\r
- final public static String codify(String s,int i0,int iN,boolean keepbs) {\r
- StringBuffer sb = new StringBuffer();\r
- boolean ucmode = false, lcmode = false, litmode = false;\r
- boolean uc1 = false, lc1 = false;\r
- boolean modified = false;\r
- for(int i=i0;i<iN;i++) {\r
- char c = s.charAt(i);\r
- boolean mf = true, app=true;\r
- if(c=='\\') {\r
- app=false;\r
- i++;\r
- if(i<s.length()) {\r
- char c2 = s.charAt(i);\r
- switch(c2) {\r
- case 'Q':\r
- litmode = true;\r
- break;\r
- case 'U':\r
- ucmode = true;\r
- break;\r
- case 'L':\r
- lcmode = true;\r
- break;\r
- case 'u':\r
- uc1 = true;\r
- break;\r
- case 'l':\r
- lc1 = true;\r
- break;\r
- case 'E':\r
- uc1=lc1=ucmode=lcmode=litmode=false;\r
- break;\r
- default:\r
- if(keepbs)\r
- sb.append('\\');\r
- c=c2;\r
- if(keepbs) mf = false;\r
- app = true;\r
- break;\r
- }\r
- modified |= mf;\r
- }\r
- }\r
- if(app) {\r
- if(lc1) {\r
- c=lc(c);\r
- lc1=false;\r
- } else if(uc1) {\r
- c=uc(c);\r
- uc1=false;\r
- } else if(ucmode) {\r
- c=uc(c);\r
- } else if(lcmode) {\r
- c=lc(c);\r
- }\r
- if(litmode && needbs(c))\r
- sb.append('\\');\r
- sb.append(c);\r
- }\r
+ return c;\r
+ }\r
+\r
+ final public static String codify(String s, boolean keepbs)\r
+ {\r
+ return codify(s, 0, s.length(), keepbs);\r
+ }\r
+\r
+ final public static String codify(String s, int i0, int iN, boolean keepbs)\r
+ {\r
+ StringBuffer sb = new StringBuffer();\r
+ boolean ucmode = false, lcmode = false, litmode = false;\r
+ boolean uc1 = false, lc1 = false;\r
+ boolean modified = false;\r
+ for (int i = i0; i < iN; i++)\r
+ {\r
+ char c = s.charAt(i);\r
+ boolean mf = true, app = true;\r
+ if (c == '\\')\r
+ {\r
+ app = false;\r
+ i++;\r
+ if (i < s.length())\r
+ {\r
+ char c2 = s.charAt(i);\r
+ switch (c2)\r
+ {\r
+ case 'Q':\r
+ litmode = true;\r
+ break;\r
+ case 'U':\r
+ ucmode = true;\r
+ break;\r
+ case 'L':\r
+ lcmode = true;\r
+ break;\r
+ case 'u':\r
+ uc1 = true;\r
+ break;\r
+ case 'l':\r
+ lc1 = true;\r
+ break;\r
+ case 'E':\r
+ uc1 = lc1 = ucmode = lcmode = litmode = false;\r
+ break;\r
+ default:\r
+ if (keepbs)\r
+ {\r
+ sb.append('\\');\r
+ }\r
+ c = c2;\r
+ if (keepbs)\r
+ {\r
+ mf = false;\r
+ }\r
+ app = true;\r
+ break;\r
+ }\r
+ modified |= mf;\r
+ }\r
+ }\r
+ if (app)\r
+ {\r
+ if (lc1)\r
+ {\r
+ c = lc(c);\r
+ lc1 = false;\r
+ }\r
+ else if (uc1)\r
+ {\r
+ c = uc(c);\r
+ uc1 = false;\r
+ }\r
+ else if (ucmode)\r
+ {\r
+ c = uc(c);\r
+ }\r
+ else if (lcmode)\r
+ {\r
+ c = lc(c);\r
+ }\r
+ if (litmode && needbs(c))\r
+ {\r
+ sb.append('\\');\r
}\r
- return modified ? sb.toString() : s;\r
+ sb.append(c);\r
+ }\r
+ }\r
+ return modified ? sb.toString() : s;\r
+ }\r
+\r
+ final static char uc(char c)\r
+ {\r
+ return CaseMgr.toUpperCase(c);\r
+ }\r
+\r
+ final static char lc(char c)\r
+ {\r
+ return CaseMgr.toLowerCase(c);\r
+ }\r
+\r
+ final static boolean needbs(char c)\r
+ {\r
+ if (c >= 'a' && c <= 'z')\r
+ {\r
+ return false;\r
}\r
- final static char uc(char c) {\r
- return CaseMgr.toUpperCase(c);\r
+ if (c >= 'A' && c <= 'Z')\r
+ {\r
+ return false;\r
}\r
- final static char lc(char c) {\r
- return CaseMgr.toLowerCase(c);\r
+ if (c >= '0' && c <= '9')\r
+ {\r
+ return false;\r
}\r
- final static boolean needbs(char c) {\r
- if(c >= 'a' && c <= 'z')\r
- return false;\r
- if(c >= 'A' && c <= 'Z')\r
- return false;\r
- if(c >= '0' && c <= '9')\r
- return false;\r
- if(c == '_')\r
- return false;\r
- return true;\r
+ if (c == '_')\r
+ {\r
+ return false;\r
}\r
- final static Regex parse(String s) {\r
- boolean igncase = false, optim = false, gFlag = false;\r
- boolean sFlag = false, mFlag = false, xFlag = false;\r
+ return true;\r
+ }\r
\r
- StringBuffer s1 = new StringBuffer();\r
- StringBuffer s2 = new StringBuffer();\r
- int i=0,count=0;\r
- char mode,delim='/',cdelim='/';\r
- if(s.length() >= 3 && s.charAt(0)=='s') {\r
- mode = 's';\r
- delim = s.charAt(1);\r
- cdelim = close(delim);\r
- i=2;\r
- } else if(s.length() >= 2 && s.charAt(0)=='m') {\r
- mode = 'm';\r
- delim = s.charAt(1);\r
- cdelim = close(delim);\r
- i=2;\r
- } else if(s.length() >= 1 && s.charAt(0)=='/') {\r
- mode = 'm';\r
- i=1;\r
- } else {\r
- try {\r
- RegSyntaxError.endItAll(\r
- "Regex.perlCode should be of the "+\r
- "form s/// or m// or //");\r
- } catch(RegSyntax rs) {}\r
- return null;\r
- }\r
- for(;i<s.length();i++) {\r
- if(s.charAt(i)=='\\') {\r
- s1.append('\\');\r
- i++;\r
- } else if(s.charAt(i)==cdelim && count==0) {\r
- i++;\r
- break;\r
- } else if(s.charAt(i)==delim && cdelim != delim) {\r
- count++;\r
- } else if(s.charAt(i)==cdelim && cdelim != delim) {\r
- count--;\r
- }\r
- s1.append(s.charAt(i));\r
+ final static Regex parse(String s)\r
+ {\r
+ boolean igncase = false, optim = false, gFlag = false;\r
+ boolean sFlag = false, mFlag = false, xFlag = false;\r
+\r
+ StringBuffer s1 = new StringBuffer();\r
+ StringBuffer s2 = new StringBuffer();\r
+ int i = 0, count = 0;\r
+ char mode, delim = '/', cdelim = '/';\r
+ if (s.length() >= 3 && s.charAt(0) == 's')\r
+ {\r
+ mode = 's';\r
+ delim = s.charAt(1);\r
+ cdelim = close(delim);\r
+ i = 2;\r
+ }\r
+ else if (s.length() >= 2 && s.charAt(0) == 'm')\r
+ {\r
+ mode = 'm';\r
+ delim = s.charAt(1);\r
+ cdelim = close(delim);\r
+ i = 2;\r
+ }\r
+ else if (s.length() >= 1 && s.charAt(0) == '/')\r
+ {\r
+ mode = 'm';\r
+ i = 1;\r
+ }\r
+ else\r
+ {\r
+ try\r
+ {\r
+ RegSyntaxError.endItAll(\r
+ "Regex.perlCode should be of the " +\r
+ "form s/// or m// or //");\r
+ }\r
+ catch (RegSyntax rs)\r
+ {}\r
+ return null;\r
+ }\r
+ for (; i < s.length(); i++)\r
+ {\r
+ if (s.charAt(i) == '\\')\r
+ {\r
+ s1.append('\\');\r
+ i++;\r
+ }\r
+ else if (s.charAt(i) == cdelim && count == 0)\r
+ {\r
+ i++;\r
+ break;\r
+ }\r
+ else if (s.charAt(i) == delim && cdelim != delim)\r
+ {\r
+ count++;\r
+ }\r
+ else if (s.charAt(i) == cdelim && cdelim != delim)\r
+ {\r
+ count--;\r
+ }\r
+ s1.append(s.charAt(i));\r
+ }\r
+ if (mode == 's' && cdelim != delim)\r
+ {\r
+ while (i < s.length() && Prop.isWhite(s.charAt(i)))\r
+ {\r
+ i++;\r
+ }\r
+ if (i >= s.length())\r
+ {\r
+ try\r
+ {\r
+ RegSyntaxError.endItAll("" + mode + delim + " needs " + cdelim);\r
}\r
- if(mode=='s' && cdelim != delim) {\r
- while(i<s.length() && Prop.isWhite(s.charAt(i)) )\r
- i++;\r
- if(i>=s.length()) {\r
- try {\r
- RegSyntaxError.endItAll(""+mode+delim+" needs "+cdelim);\r
- } catch(RegSyntax rs) {}\r
- return null;\r
- }\r
- cdelim = close(delim = s.charAt(i));\r
- i++;\r
+ catch (RegSyntax rs)\r
+ {}\r
+ return null;\r
+ }\r
+ cdelim = close(delim = s.charAt(i));\r
+ i++;\r
+ }\r
+ count = 0;\r
+ if (mode == 's')\r
+ {\r
+ for (; i < s.length(); i++)\r
+ {\r
+ if (s.charAt(i) == '\\')\r
+ {\r
+ s2.append('\\');\r
+ i++;\r
}\r
- count=0;\r
- if(mode=='s') {\r
- for(;i<s.length();i++) {\r
- if(s.charAt(i)=='\\') {\r
- s2.append('\\');\r
- i++;\r
- } else if(s.charAt(i)==cdelim && count==0) {\r
- i++;\r
- break;\r
- } else if(s.charAt(i)==delim && cdelim != delim) {\r
- count++;\r
- } else if(s.charAt(i)==cdelim && cdelim != delim) {\r
- count--;\r
- }\r
- s2.append(s.charAt(i));\r
- }\r
+ else if (s.charAt(i) == cdelim && count == 0)\r
+ {\r
+ i++;\r
+ break;\r
}\r
- for(;i<s.length();i++) {\r
- char c = s.charAt(i);\r
- switch(c) {\r
- case 'x':\r
- xFlag = true;\r
- break;\r
- case 'i':\r
- igncase = true;\r
- break;\r
- case 'o':\r
- optim = true;\r
- break;\r
- case 's':\r
- sFlag = true;\r
- break;\r
- case 'm':\r
- mFlag = true;\r
- break;\r
- case 'g':\r
- gFlag = true;\r
- break;\r
- default:\r
- // syntax error!\r
- try {\r
- RegSyntaxError.endItAll("Illegal flag to pattern: "+c);\r
- } catch(RegSyntax rs) {}\r
- return null;\r
- }\r
+ else if (s.charAt(i) == delim && cdelim != delim)\r
+ {\r
+ count++;\r
}\r
- Regex r = new Regex();\r
- try {\r
- String pat=s1.toString(),reprul=s2.toString();\r
- if(xFlag) {\r
- pat = strip(pat);\r
- reprul = strip(reprul);\r
- }\r
- r.compile(pat);\r
- r.ignoreCase |= igncase;\r
- r.gFlag |= gFlag;\r
- r.sFlag |= sFlag;\r
- r.mFlag |= mFlag;\r
- if(optim) r.optimize();\r
- if(delim=='\'')\r
- r.setReplaceRule(new StringRule(reprul));\r
- else\r
- r.setReplaceRule(ReplaceRule.perlCode(reprul));\r
- } catch(RegSyntax rs) {\r
- r = null;\r
+ else if (s.charAt(i) == cdelim && cdelim != delim)\r
+ {\r
+ count--;\r
}\r
- return r;\r
+ s2.append(s.charAt(i));\r
+ }\r
+ }\r
+ for (; i < s.length(); i++)\r
+ {\r
+ char c = s.charAt(i);\r
+ switch (c)\r
+ {\r
+ case 'x':\r
+ xFlag = true;\r
+ break;\r
+ case 'i':\r
+ igncase = true;\r
+ break;\r
+ case 'o':\r
+ optim = true;\r
+ break;\r
+ case 's':\r
+ sFlag = true;\r
+ break;\r
+ case 'm':\r
+ mFlag = true;\r
+ break;\r
+ case 'g':\r
+ gFlag = true;\r
+ break;\r
+ default:\r
+\r
+ // syntax error!\r
+ try\r
+ {\r
+ RegSyntaxError.endItAll("Illegal flag to pattern: " + c);\r
+ }\r
+ catch (RegSyntax rs)\r
+ {}\r
+ return null;\r
+ }\r
+ }\r
+ Regex r = new Regex();\r
+ try\r
+ {\r
+ String pat = s1.toString(), reprul = s2.toString();\r
+ if (xFlag)\r
+ {\r
+ pat = strip(pat);\r
+ reprul = strip(reprul);\r
+ }\r
+ r.compile(pat);\r
+ r.ignoreCase |= igncase;\r
+ r.gFlag |= gFlag;\r
+ r.sFlag |= sFlag;\r
+ r.mFlag |= mFlag;\r
+ if (optim)\r
+ {\r
+ r.optimize();\r
+ }\r
+ if (delim == '\'')\r
+ {\r
+ r.setReplaceRule(new StringRule(reprul));\r
+ }\r
+ else\r
+ {\r
+ r.setReplaceRule(ReplaceRule.perlCode(reprul));\r
+ }\r
}\r
- static String strip(String s) {\r
- StringBuffer sb = new StringBuffer();\r
- for(int i=0;i<s.length();i++) {\r
- char c = s.charAt(i);\r
- if(Prop.isWhite(c)) {\r
- ;\r
- } else if(c == '#') {\r
- i++;\r
- while(i<s.length()) {\r
- if(s.charAt(i) == '\n')\r
- break;\r
- i++;\r
- }\r
- } else if(c == '\\') {\r
- sb.append(c);\r
- sb.append(s.charAt(++i));\r
- } else\r
- sb.append(c);\r
+ catch (RegSyntax rs)\r
+ {\r
+ r = null;\r
+ }\r
+ return r;\r
+ }\r
+\r
+ static String strip(String s)\r
+ {\r
+ StringBuffer sb = new StringBuffer();\r
+ for (int i = 0; i < s.length(); i++)\r
+ {\r
+ char c = s.charAt(i);\r
+ if (Prop.isWhite(c))\r
+ {\r
+ ;\r
+ }\r
+ else if (c == '#')\r
+ {\r
+ i++;\r
+ while (i < s.length())\r
+ {\r
+ if (s.charAt(i) == '\n')\r
+ {\r
+ break;\r
+ }\r
+ i++;\r
+ }\r
+ }\r
+ else if (c == '\\')\r
+ {\r
+ sb.append(c);\r
+ sb.append(s.charAt(++i));\r
+ }\r
+ else\r
+ {\r
+ sb.append(c);\r
}\r
- return sb.toString();\r
}\r
+ return sb.toString();\r
+ }\r
}\r
git://source.jalview.org / jalview.git / blobdiff