Changeset 18960 for other-projects/trunk/anttasks/src/org/greenstone/anttasks/RegexSearchReplace.java

Timestamp:

2009-04-15T11:28:41+12:00 (15 years ago)

Author:

oranfry

Message:

modified rsr to take a range of line numbers to limit its operations to

File:

• other-projects/trunk/anttasks/src/org/greenstone/anttasks/RegexSearchReplace.java (modified) (7 diffs)

other-projects/trunk/anttasks/src/org/greenstone/anttasks/RegexSearchReplace.java

@@ -37 +37 @@
     private String pattern = null;
     private String replacement = null;
+    private int fromLine = -1;
+    private int toLine = -1;
     private boolean winPath = false;
 
@@ -45 +47 @@
         rsr.setPattern(args[1]);
         rsr.setReplacement(args[2]);
+        rsr.setLines(args[3]);
 
         rsr.execute();
@@ -119 +122 @@
         System.out.println();
 
-        //output filename(s)
-        /*
-        if ( file != null ) {
-            System.out.println( "Replace in file: " + file );
-        } else {
-            System.out.println( "Replace in files:" );
-            for ( int i = 0; i < files.length; i++ ) {
-                System.out.println(files[i]);
-            }
-        }
-        */
-
+        //output lines if necessary
+        if ( this.fromLine != -1 || this.toLine != -1 ) {
+            System.out.println( "Lines: " + (this.fromLine==-1?"Start":this.fromLine) + " ~ " + (this.toLine==-1?"End":this.toLine) );
+            System.out.println();
+        }
 
         System.out.println( "Files: " );
@@ -168 +164 @@
             //pass the file through, searching and replacing
             String line = null;
+            int lineNumber = 1;
             boolean hasMoreLines = true;
             while ( hasMoreLines ) {
@@ -182 +179 @@
                 } else {
 
-                    String oldLine = line;
-                    if ( pattern != null ) {
-                        String rp = replacement;
-                        if ( winPath ) {
-                            rp = rp.replaceAll("\\\\","\\\\\\\\");
-                        }
-                        line = line.replaceAll((String)pattern, (String)rp);
-                    } else {
-                        for ( int i=0; i<jobs.size(); i++ ) {
-                            String rp = ((RegexSearchReplaceJob)(jobs.get(i))).getReplacement();
-                            if ( ((RegexSearchReplaceJob)(jobs.get(i))).getWinPath() ) {
+                    //only if within the given line range
+                    if ( ( fromLine == -1 || lineNumber >= fromLine ) && ( toLine == -1 || lineNumber < toLine ) ) {
+                        String oldLine = line;
+                        if ( pattern != null ) {
+                            String rp = replacement;
+                            if ( winPath ) {
                                 rp = rp.replaceAll("\\\\","\\\\\\\\");
                             }
-                            line = line.replaceAll( ((RegexSearchReplaceJob)(jobs.get(i))).getPattern(), rp );
+                            line = line.replaceAll((String)pattern, (String)rp);
+                        } else {
+                            for ( int i=0; i<jobs.size(); i++ ) {
+                                String rp = ((RegexSearchReplaceJob)(jobs.get(i))).getReplacement();
+                                if ( ((RegexSearchReplaceJob)(jobs.get(i))).getWinPath() ) {
+                                    rp = rp.replaceAll("\\\\","\\\\\\\\");
+                                }
+                                line = line.replaceAll( ((RegexSearchReplaceJob)(jobs.get(i))).getPattern(), rp );
+                            }
                         }
-                    }
-
-                    if ( !oldLine.equals( line ) ) {
-                        noReplaces++;
+
+                        if ( !oldLine.equals( line ) ) {
+                            noReplaces++;
+                        }
                     }
 
@@ -210 +210 @@
                     }
                 }
+                lineNumber++;
             }
             
@@ -269 +270 @@
     }
 
+    public void setLines(String lines) {
+        //lines should be in the form "2" or "2-5"
+
+        //trim
+        lines.replaceAll("\\s","");
+
+        if ( lines == "" ) {
+            throw new BuildException( "Error - no line number(s) given in lines attribute!! " );
+        }
+
+        //split into parts
+        String[] parts = lines.split("-",2);
+
+        try {
+            if ( parts.length == 1 ) {
+                this.fromLine = Integer.parseInt( parts[0] );
+                this.toLine = this.fromLine + 1;
+            } else {
+                if ( !parts[0].equals("") ) this.fromLine = Integer.parseInt( parts[0] );
+                if ( !parts[1].equals("") ) this.toLine = Integer.parseInt( parts[1] );
+            }
+        } catch( NumberFormatException nfe ) {
+            throw new BuildException( "Error - invalid line numbers given in lines attribute!! '" + parts[0] + "' - '" + parts[1] + "'" );
+        }
+
+    }
+
+
     public void setPattern(String pattern) {
         this.pattern = pattern;