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SPL(Structured Process Language) A programming language specially for structured data computing.
package com.scudata.common;
import java.io.*;
/**
* ????ʹ??ת???ַ?ʱ??ע?ⲻ??ʹ?õ????š?˫???š?Բ???š??????źʹ????š? ????֧??ת???ַ?\????\????????????Ų??????ã?????????
*/
public final class Sentence {
/**
* ????ʱ???Դ?Сд
*/
public static final int IGNORE_CASE = 1;
/**
* ????ʱ????Բ????,??Ҫɨ????????????
*/
public static final int IGNORE_PARS = 2;
/**
* ????ʱ???????ҵ?һ??ƥ?䴮
*/
public static final int ONLY_FIRST = 4;
/**
* ????ʱ??????ƥ?䴮?DZ?ʶ??ʱ?ɹ?
*/
public static final int ONLY_PHRASE = 8;
/**
* ????ʱ????????,??Ҫɨ????????????
*/
public static final int IGNORE_QUOTE = 16;
/**
* ָʾɾ???ַ????пհ??ַ?ʱ??????????ַ???д
*/
public static final int UPPER_WHEN_TRIM = 16;
/**
* ָʾɾ???ַ????пհ??ַ?ʱ??????????ַ?Сд
*/
public static final int LOWER_WHEN_TRIM = 32;
private final static boolean LOG = false;
public static void log(Object o) {
if (LOG)
System.out.println(o);
}
/**
* ???캯??
*
* @param str
* ??Ҫ???о䷨???????ַ???
*/
public Sentence(String str) {
this.str = str;
}
/**
* ???캯??
*
* @param str
* ??Ҫ???о䷨???????ַ???
* @param escapeChar
* ת???ַ?
*/
public Sentence(String str, char escapeChar) {
this.str = str;
this.escapeChar = escapeChar;
}
/**
* ??????ʶ??
*
* @param str
* ??Ҫ??????ʶ??ԭ??
* @param start
* ????????ʼλ??
* @return ???ر?ʶ?????һ???ַ???ԭ???е?λ??
*/
public static int scanIdentifier(String str, int start) {
int len = str.length();
char ch = str.charAt(start);
if (!Character.isJavaIdentifierStart(ch))
return -1;
int i = start + 1;
while (i < len) {
ch = str.charAt(i);
if (ch == (char) 0)
break;
if (ch == (char) 1)
break;
if (!Character.isJavaIdentifierPart(ch))
break;
i++;
}
return i - 1;
}
public static boolean checkIdentifier(String ident) {
if (ident == null)
return false;
int len = ident.length();
if (len == 0)
return false;
char c = ident.charAt(0);
if (!Character.isJavaIdentifierStart(c))
return false;
for (int i = 1; i < len; i++) {
c = ident.charAt(i);
if (c == (char) 0)
return false;
if (c == (char) 1)
return false;
if (!Character.isJavaIdentifierPart(c))
return false;
}
return true;
}
/**
* ??????һ??ƥ???????'??"
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,??ͷһ??????ԭ???е?λ??
* @param escapeChar
* ת???ַ?
* @return ???ҵ?,??ƥ?????????ԭ???е?λ??,????-1
*/
public static int scanQuotation(String str, int start, char escapeChar) {
char quote = str.charAt(start);
if (quote != '\"' && quote != '\'')
return -1;
int idx = start + 1, len = str.length();
while (idx < len) {
/*
* idx = str.indexOf(quote, idx); if (idx < 0) break; if (
* str.charAt(idx - 1) != escapeChar) return idx; idx++;
*/
char ch = str.charAt(idx);
if (ch == escapeChar)
idx += 2;
else if (ch == quote)
return idx;
else
idx++;
}
return -1;
}
/**
* ??????һ??ƥ???????'??",ȱʡת???ַ?Ϊ\
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,??ͷһ??????ԭ???е?λ??
* @return ???ҵ?,??ƥ?????????ԭ???е?λ??,????-1
*/
public static int scanQuotation(String str, int start) {
return scanQuotation(str, start, '\\');
}
/**
* ??????һ??ƥ???Բ???ţ????????ڵ?Բ???ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,????Բ????(??ԭ???е?λ??
* @param escapeChar
* ת???ַ?
* @return ???ҵ?,??ƥ?????Բ??????ԭ???е?λ??,????-1
*/
public static int scanParenthesis(String str, int start, char escapeChar) {
if (str.charAt(start) != '(')
return -1;
int len = str.length();
for (int i = start + 1; i < len;) {
char ch = str.charAt(i);
switch (ch) {
case '(':
i = scanParenthesis(str, i, escapeChar);
if (i < 0)
return -1;
i++;
break;
case '\"':
case '\'':
int q = scanQuotation(str, i, escapeChar);
if (q < 0) {
i++;
} else {
i = q + 1;
}
break;
case '[': // $[str]
if (i > start && str.charAt(i - 1) == '$') {
q = scanBracket(str, i, escapeChar);
if (q < 0) {
i++;
} else {
i = q + 1;
}
} else {
i++;
}
break;
case ')':
return i;
default:
if (ch == escapeChar)
i++;
i++;
break;
}
}
return -1;
}
/**
* ??????һ??ƥ???Բ????,ȱʡת???ַ?Ϊ\?????????ڵ?Բ???ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,????Բ????(??ԭ???е?λ??
* @return ???ҵ?,??ƥ?????Բ??????ԭ???е?λ??,????-1
*/
public static int scanParenthesis(String str, int start) {
return scanParenthesis(str, start, '\\');
}
/**
* ??????һ??ƥ????????ţ????????ڵ??????ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,????????????ԭ???е?λ??
* @param escapeChar
* ת???ַ?
* @return ???ҵ?,??ƥ?????????????ԭ???е?λ??,????-1
*/
public static int scanBracket(String str, int start, char escapeChar) {
if (str.charAt(start) != '[')
return -1;
int len = str.length();
for (int i = start + 1; i < len;) {
char ch = str.charAt(i);
switch (ch) {
case '[':
i = scanBracket(str, i, escapeChar);
if (i < 0)
return -1;
i++;
break;
case '\"':
case '\'':
int q = scanQuotation(str, i, escapeChar);
if (q < 0) {
i++;
} else {
i = q + 1;
}
break;
case ']':
return i;
default:
if (ch == escapeChar)
i++;
i++;
break;
}
}
return -1;
}
/**
* ??????һ??ƥ?????????,ȱʡת???ַ?Ϊ\?????????ڵ??????ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,????????????ԭ???е?λ??
* @return ???ҵ?,??ƥ?????????????ԭ???е?λ??,????-1
*/
public static int scanBracket(String str, int start) {
return scanBracket(str, start, '\\');
}
/**
* ??????һ??ƥ??Ļ????ţ????????ڵĻ????ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,??????????ԭ???е?λ??
* @param escapeChar
* ת???ַ?
* @return ???ҵ?,??ƥ????һ???????ԭ???е?λ??,????-1
*/
public static int scanBrace(String str, int start, char escapeChar) {
if (str.charAt(start) != '{')
return -1;
int len = str.length();
for (int i = start + 1; i < len;) {
char ch = str.charAt(i);
switch (ch) {
case '{':
i = scanBrace(str, i, escapeChar);
if (i < 0)
return -1;
i++;
break;
case '\"':
case '\'':
int q = scanQuotation(str, i, escapeChar);
if (q < 0) {
i++;
} else {
i = q + 1;
}
break;
case '}':
return i;
default:
if (ch == escapeChar)
i++;
i++;
break;
}
}
return -1;
}
/**
* ??????һ??ƥ??Ļ?????,ȱʡת???ַ?Ϊ\?????????ڵĻ????ű?????
*
* @param str
* ??Ҫ???????ŵ?ԭ??
* @param start
* ??ʼλ??,????????(??ԭ???е?λ??
* @return ???ҵ?,??ƥ????һ???????ԭ???е?λ??,????-1
*/
public static int scanBrace(String str, int start) {
return scanBrace(str, start, '\\');
}
/**
* ??ԭ???еĿհ??ַ?ɾ??,??????ifcase??????ԭ???еķ????????ַ???д,Сд??
*
* @param str
* ??Ҫɾ???հ??ַ???ԭ??
* @param ifcase
* ????ʹ??0, UPPER_WHEN_TRIM, LOWER_WHEN_TRIM,
* UPPER_WHEN_TRIM+LOWER_WHEN_TRIM
* @param escapeChar
* ת???ַ?
* @return ɾ???հ??ַ???Ĵ?
*/
public static String trim(String str, int ifcase, char escapeChar) {
int idx = 0, len = str.length();
int flag = 0;
// 0 - ignore following whitespace
// 1 - identifier char
// 2 - whitespace
StringBuffer dst = new StringBuffer(len);
while (idx < len) {
char ch = str.charAt(idx);
if ((ch == '\"' || ch == '\'')
&& ((idx > 0 && str.charAt(idx - 1) != escapeChar) || idx == 0)) {
if (flag == 2)
dst.append(' ');
int i = scanQuotation(str, idx, escapeChar);
if (i < 0)
throw new RuntimeException("δ?ҵ?λ??" + idx + "????Ӧ??????");
i++;
for (int j = idx; j < i; j++)
dst.append(str.charAt(j));
idx = i;
continue;
} else if (Character.isWhitespace(ch)) {
do {
idx++;
} while (idx < len && Character.isWhitespace(str.charAt(idx)));
if (flag > 0)
flag = 2;
continue;
} else if (isWordChar(ch)) {
if (flag == 2)
dst.append(' ');
flag = 1;
} else {
flag = 0;
}
switch (ifcase) {
case UPPER_WHEN_TRIM:
dst.append(Character.toUpperCase(ch));
break;
case LOWER_WHEN_TRIM:
dst.append(Character.toLowerCase(ch));
break;
default:
dst.append(ch);
}
idx++;
}
return dst.toString();
}
/**
* ??ԭ???еĿհ??ַ?ɾ??,??????ifcase??????ԭ???еķ????????ַ???д,Сд??,ȱʡת???ַ?Ϊ\
*
* @param str
* ??Ҫɾ???հ??ַ???ԭ??
* @param ifcase
* ????Ϊ0, UPPER_WHEN_TRIM, LOWER_WHEN_TRIM,
* UPPER_WHEN_TRIM+LOWER_WHEN_TRIM
* @return ɾ???հ??ַ???Ĵ?
*/
public static String trim(String str, int ifcase) {
return trim(str, ifcase, '\\');
}
/**
* ??ԭ???????????????????????????
*
* @param str
* ??Ҫ?????????ԭ??
* @param phrase
* ??Ҫ?????Ķ???
* @param start
* ??ԭ???е???ʼλ??
* @param flag
* ????Ϊ0,IGNORE_CASE,IGNORE_PARS,IGNORE_CASE+IGNORE_PARS
* @param escapeChar
* ת???ַ?
* @return ???ҵ?,?ض?????ԭ???е?λ??,????-1
*/
public static int phraseAt(String str, String phrase, int start, int flag,
char escapeChar) {
int slen = str.length(), plen = phrase.length();
boolean iswordchar = false;
for (int i = start; i < slen;) {
char ch = str.charAt(i);
if ((ch == '\"' || ch == '\'')
&& ((i > 0 && str.charAt(i - 1) != '\\') || i == 0)) {
i = scanQuotation(str, i, escapeChar);
if (i < 0)
return -1;
i++;
iswordchar = false;
continue;
}
if ((flag & IGNORE_PARS) == 0 && ch == '(') {
i = scanParenthesis(str, i, escapeChar);
if (i < 0)
return -1;
i++;
iswordchar = false;
continue;
}
if (!iswordchar) {
if (phrase.regionMatches((flag & IGNORE_CASE) > 0, 0, str, i,
plen)) {
if ((i + plen) >= slen || !isWordChar(str.charAt(i + plen)))
return i;
}
}
iswordchar = isWordChar(ch);
i++;
}
return -1;
}
/**
* ??ԭ????????????,ȱʡת???ַ?Ϊ\
*
* @param str
* ??Ҫ?????????ԭ??
* @param phrase
* ??Ҫ?????Ķ???
* @param start
* ??ԭ???е???ʼλ??
* @param flag
* ????Ϊ0,IGNORE_CASE,IGNORE_PARS????ӷ????
* @return ???ҵ?,?ض?????ԭ???е?λ??,????-1
*/
public static int phraseAt(String str, String phrase, int start, int flag) {
return phraseAt(str, phrase, start, flag, '\\');
}
/**
* ?滻ԭ???е??Ӵ?
*
* @param str
* ??Ҫ?滻??ԭ??
* @param start
* ??ԭ????ʼ?滻????ʼλ??
* @param sold
* ??Ҫ?滻???Ӵ?
* @param snew
* ?滻??
* @param flag
* ??Ϊ0,IGNORE_CASE,IGNORE_PARS,IGNORE_QUOTE,ONLY_FIRST,
* ONLY_PHRASE????ӷ????
* @param escapeChar
* ת???ַ?
* @return ?滻??Ĵ?
*/
public static String replace(String str, int start, String sold,
String snew, int flag, char escapeChar) {
int strlen = str.length(), len = sold.length();
StringBuffer dst = null;
char preChar = '*'; // ָʾƥ?䴮ǰһ???ַ???????Ч??ʶ???ַ?
int i = start;
while (i < strlen) {
char ch = str.charAt(i);
if ((ch == '\'' || ch == '\"') && (flag & IGNORE_QUOTE) == 0
&& (i == 0 || (i > 0 && str.charAt(i - 1) != escapeChar))) {
int idx = scanQuotation(str, i, escapeChar);
if (idx < 0)
throw new RuntimeException("δ?ҵ?λ??" + i + "????Ӧ??????");
idx++;
if (dst != null)
for (int j = i; j < idx; j++)
dst.append(str.charAt(j));
i = idx;
preChar = '*';
continue;
}
if (((flag & IGNORE_PARS) == 0) && (ch == '(')) {
int idx = scanParenthesis(str, i, escapeChar);
if (idx < 0)
throw new RuntimeException("δ?ҵ?λ??" + i + "????Ӧ??Բ????");
idx++;
if (dst != null)
for (int j = i; j < idx; j++)
dst.append(str.charAt(j));
i = idx;
preChar = '*';
continue;
}
boolean lb;
lb = sold.regionMatches((flag & IGNORE_CASE) > 0, 0, str, i, len);
if (lb && (flag & ONLY_PHRASE) > 0) {
// ??ƥ?䴮?ĵ?һ?ַ???ǰһ?ַ???һ?????DZ?ʶ???ַ?ʱΪ??
lb = !isWordChar(sold.charAt(0)) || !isWordChar(preChar);
// ??ƥ?䴮??????ַ?????һ?ַ???һ?????DZ?ʶ???ַ?ʱ
if ((i + len) < strlen)
lb = lb
&& (!isWordChar(sold.charAt(len - 1)) || !isWordChar(str
.charAt(i + len)));
}
if (lb) {
if (dst == null) {
dst = new StringBuffer(strlen << 2);
for (int j = 0; j < i; j++)
dst.append(str.charAt(j));
}
dst.append(snew);
i += len;
preChar = str.charAt(i - 1);
if ((flag & ONLY_FIRST) > 0) {
while (i < strlen)
dst.append(str.charAt(i++));
break;
}
} else {
if (dst != null)
dst.append(ch);
preChar = ch;
i++;
}
} // while(i 0 && str.charAt(i - 1) != '\\') || i == 0)) {
int idx = scanQuotation(str, i, escapeChar);
if (idx < 0)
return 0;
idx++;
if (dst != null)
for (int j = i; j < idx; j++)
dst.append(str.charAt(j));
i = idx;
preChar = '*';
continue;
}
if (((flag & IGNORE_PARS) == 0) && (ch == '(')) {
int idx = scanParenthesis(str, i, escapeChar);
if (idx < 0)
return 0;
idx++;
if (dst != null)
for (int j = i; j < idx; j++)
dst.append(str.charAt(j));
i = idx;
preChar = '*';
continue;
}
boolean lb;
lb = sold.regionMatches((flag & IGNORE_CASE) > 0, 0, str, i, len);
if (lb && (flag & ONLY_PHRASE) > 0) {
// ??ƥ?䴮?ĵ?һ?ַ???ǰһ?ַ???һ?????DZ?ʶ???ַ?ʱΪ??
lb = !isWordChar(sold.charAt(0)) || !isWordChar(preChar);
// ??ƥ?䴮??????ַ?????һ?ַ???һ?????DZ?ʶ???ַ?ʱ
if ((i + len) < strlen)
lb = lb
&& (!isWordChar(sold.charAt(len - 1)) || !isWordChar(str
.charAt(i + len)));
}
if (lb) {
if (dst == null) {
dst = new StringBuffer(strlen << 2);
for (int j = 0; j < i; j++)
dst.append(str.charAt(j));
}
dst.append(snew);
i += len;
preChar = str.charAt(i - 1);
count++;
if ((flag & ONLY_FIRST) > 0) {
while (i < strlen)
dst.append(str.charAt(i++));
break;
}
} else {
if (dst != null)
dst.append(ch);
i++;
}
}
if (dst != null)
str = dst.toString();
return count;
}
/**
* ȡ??????Ĵ?
*
* @return ??????Ĵ?
*/
public String toString() {
return this.str;
}
/**
* ȡ??????Ĵ?
*
* @return ??????Ĵ?
*/
public String getSentence() {
return this.str;
}
/**
* ??ԭ?????????ַ???(???Ա??????ж?????)
*
* @param phrase
* ??Ҫ???????ַ???
* @param start
* ??ԭ???е???ʼλ??
* @param flag
* ????Ϊ0,IGNORE_CASE,IGNORE_PARS,IGNORE_CASE+IGNORE_PARS
* @return ?ַ?????ԭ???е?λ??
*/
public static int indexOf(String str, String find, int start, int flag,
char escapeChar) {
int slen = str.length(), plen = find.length();
for (int i = start; i < slen;) {
char ch = str.charAt(i);
if ((flag & IGNORE_QUOTE) == 0
&& // xq add,????֧???????????? 2010.8.25
(ch == '\"' || ch == '\'')
&& ((i > 0 && str.charAt(i - 1) != '\\') || i == 0)) {
i = scanQuotation(str, i, escapeChar);
if (i < 0)
return -1;
i++;
continue;
}
if ((flag & IGNORE_PARS) == 0 && ch == '(') {
i = scanParenthesis(str, i, escapeChar);
if (i < 0)
return -1;
i++;
continue;
}
if (find.regionMatches((flag & IGNORE_CASE) > 0, 0, str, i, plen)) {
return i;
}
i++;
}
return -1;
}
public int indexOf(String find, int start, int flag) {
return indexOf(this.str, find, start, flag, escapeChar);
}
public static int indexOf(String str, String find, int start, int flag) {
return indexOf(str, find, start, flag, '\\');
}
/**
* ??????????ר?ã?Ϊ??֧??ONLY_PHRASE??wunan?? ??ԭ?????????ַ???(???Ա??????ж?????)
*
* @param phrase
* ??Ҫ???????ַ???
* @param start
* ??ԭ???е???ʼλ??
* @param flag
* ????Ϊ0,IGNORE_CASE,IGNORE_PARS,IGNORE_CASE+IGNORE_PARS
* @return ?ַ?????ԭ???е?λ??
*/
public static int indexOf(String str, int start, String find, int flag) {
char escapeChar = '\\';
int slen = str.length(), plen = find.length();
char preChar = '*';
for (int i = start; i < slen;) {
char ch = str.charAt(i);
if ((flag & IGNORE_QUOTE) == 0
&& // ????֧???????????? 2018.10.9 wunan
(ch == '\"' || ch == '\'')
&& ((i > 0 && str.charAt(i - 1) != '\\') || i == 0)) {
i = scanQuotation(str, i, escapeChar);
if (i < 0)
return -1;
i++;
preChar = ch;
continue;
}
if ((flag & IGNORE_PARS) == 0 && (ch == '\"' || ch == '\'')
&& ((i > 0 && str.charAt(i - 1) != '\\') || i == 0)) {
i = scanQuotation(str, i, escapeChar);
if (i < 0)
return -1;
i++;
preChar = ch;
continue;
}
if ((flag & IGNORE_PARS) == 0 && ch == '(') {
i = scanParenthesis(str, i, escapeChar);
if (i < 0)
return -1;
i++;
preChar = ch;
continue;
}
if (find.regionMatches((flag & IGNORE_CASE) > 0, 0, str, i, plen)) {
if ((flag & ONLY_PHRASE) > 0) {
// ??ƥ?䴮?ĵ?һ?ַ???ǰһ?ַ???һ?????DZ?ʶ???ַ?ʱΪ??
boolean lb = !isWordChar(find.charAt(0))
|| !isWordChar(preChar);
// ??ƥ?䴮??????ַ?????һ?ַ???һ?????DZ?ʶ???ַ?ʱ
if ((i + plen) < slen)
lb = lb
&& (!isWordChar(find.charAt(plen - 1)) || !isWordChar(str
.charAt(i + plen)));
if (!lb) {
preChar = ch;
i++;
continue;
}
}
return i;
}
i++;
preChar = ch;
}
return -1;
}
/**
* ?Ӻ???ǰ?????ַ??????????š?????ƥ??
* @param src Դ??
* @param find Ҫ???ҵĴ?
* @return ?Ҳ???????-1
*/
public static int lastIndexOf(String src, String find) {
int end = src.length() - 1;
int findLen = find.length();
if (findLen == 1) {
char tc = find.charAt(0);
while (end >= 0) {
char c = src.charAt(end);
if (c == tc) {
if (end > 0 && src.charAt(end - 1) == '\\') {
break;
} else {
return end;
}
} else if (c == '"' || c == '\'' || c == ')' || c == ']' || c == '}' || c == '\\') {
// ??ͷ??ʼ??ƥ??
break;
} else {
end--;
}
}
}
int pos = -1;
int i = 0;
while (i <= end) {
char c = src.charAt(i);
switch (c) {
case '"':
case '\'':
int match = scanQuotation(src, i, '\\');
if (match == -1) {
return -1;
} else {
i = match + 1;
continue; // ?????????ڵ?????
}
case '(':
match = Sentence.scanParenthesis(src, i, '\\');
if (match == -1) {
return -1;
} else {
i = match + 1;
continue; // ?????????ڵ?????
}
case '[':
match = Sentence.scanBracket(src, i, '\\');
if (match == -1) {
return -1;
} else {
i = match + 1;
continue; // ?????????ڵ?????
}
case '{':
match = Sentence.scanBrace(src, i, '\\');
if (match == -1) {
return -1;
} else {
i = match + 1;
continue; // ?????????ڵ?????
}
case '\\':
i += 2;
continue;
}
if (src.startsWith(find, i)) {
pos = i;
i += findLen;
} else {
i++;
}
}
return pos;
}
public static boolean isWordChar(char ch) {
return Character.isJavaIdentifierStart(ch)
|| Character.isJavaIdentifierPart(ch);
}
//??????һ??\r??\n??λ?ã?δ?ҵ????س???
private static int scanCRLF(String str, int start) {
int len = str.length();
while(start