summaryrefslogtreecommitdiff
path: root/sources/meta/util/TextExpander.java
diff options
context:
space:
mode:
Diffstat (limited to 'sources/meta/util/TextExpander.java')
-rw-r--r--sources/meta/util/TextExpander.java275
1 files changed, 0 insertions, 275 deletions
diff --git a/sources/meta/util/TextExpander.java b/sources/meta/util/TextExpander.java
deleted file mode 100644
index 5fe7fbdb38..0000000000
--- a/sources/meta/util/TextExpander.java
+++ /dev/null
@@ -1,275 +0,0 @@
-/* ____ ____ ____ ____ ______ *\
-** / __// __ \/ __// __ \/ ____/ SOcos COmpiles Scala **
-** __\_ \/ /_/ / /__/ /_/ /\_ \ (c) 2002, LAMP/EPFL **
-** /_____/\____/\___/\____/____/ **
-\* */
-
-// $Id$
-
-package meta.util;
-
-import java.io.File;
-import java.io.FileReader;
-import java.io.BufferedReader;
-import java.io.IOException;
-
-import java.lang.reflect.Field;
-import java.lang.reflect.Method;
-import java.lang.reflect.InvocationTargetException;
-
-/** A macro expander with support for indentation */
-public class TextExpander {
-
- //########################################################################
- // Public Constants
-
- /** Default macro name prefix */
- public static final String MACRO_PREFIX = "print";
-
- /** Default macro left quote */
- public static final String MACRO_LQUOTE = "{#";
-
- /** Default macro right quote */
- public static final String MACRO_RQUOTE = "#}";
-
- /** Do not edit warning */
- public static final String DO_NOT_EDIT =
- "DO NOT EDIT. Automatically generated file!";
-
- //########################################################################
- // Private Constants
-
- /** An empty array of Classes */
- private static final Class [] NO_PARAMS = new Class[0];
-
- /** An empty array of Objects */
- private static final Object[] NO_ARGS = new Object[0];
-
- //########################################################################
- // Private Fields
-
- /** The output text writer */
- private final TextWriter writer;
-
- /** The macro expander */
- private final Object expander;
-
- /** The current macro name prefix */
- private String prefix;
-
- /** The current macro left quote */
- private String lquote;
-
- /** The current macro right quote */
- private String rquote;
-
- /** The current input name */
- private String name;
-
- /** The current input line number */
- private int line;
-
- /** The current error count */
- private int errors;
-
- //########################################################################
- // Public Constructors
-
- /** Creates a new TextExpander. */
- public TextExpander(TextWriter writer, Object expander) {
- this.writer = writer;
- this.expander = expander;
- this.prefix = MACRO_PREFIX;
- this.lquote = MACRO_LQUOTE;
- this.rquote = MACRO_RQUOTE;
- }
-
- //########################################################################
- // Public Methods - Text expansion
-
- /** Expands the text from the given file. */
- public void expandText(File file) {
- setInputName(file.toString());
- setInputLine(0);
- try {
- BufferedReader reader = new BufferedReader(new FileReader(file));
- expandText(reader);
- reader.close();
- } catch (IOException exception) {
- error("input error", exception);
- }
- }
-
- /** Expands the text from the given character stream. */
- public void expandText(BufferedReader reader) {
- try {
- for (String line; (line = reader.readLine()) != null;) {
- this.line++;
- expandLine(line);
- }
- } catch (IOException exception) {
- error("input error", exception);
- }
- }
-
- /** Expands the given line. */
- public void expandLine(String line) {
- int index = 0;
- int column = 0;
- for (; index < line.length(); index++) {
- switch (line.charAt(index)) {
- case ' ' : column += 1; continue;
- case '\t': column += 8 - (column % 8); continue;
- }
- break;
- }
- if (index < line.length()) {
- int width = writer.getIndentWidth();
- writer.setIndentLevel(column / width);
- for (int i = 0; i < column % width; i++) writer.print(' ');
- line = line.substring(index);
- if (line.indexOf("$Id") >= 0)
- line = line.replaceFirst("[$]Id.*[$]", DO_NOT_EDIT);
- expand(line);
- }
- writer.println();
- }
-
- /** Expands the given string. */
- public void expand(String input) {
- int start = 0;
- while (true) {
- int lindex = input.indexOf(lquote, start);
- if (lindex < 0) break;
- int rindex = input.indexOf(rquote, lindex + lquote.length());
- if (rindex < 0) { error("unclosed macro"); break; }
- String macro = input.substring(lindex + lquote.length(), rindex);
- if (macro.indexOf(lquote) >= 0) { error("unclosed macro"); break; }
- if (start < lindex) writer.print(input.substring(start, lindex));
- expandMacro(macro);
- start = rindex + rquote.length();
- }
- if (start < input.length()) writer.print(input.substring(start));
- }
-
- //########################################################################
- // Public Methods - Macro expansion
-
- /** Expands the given macro. */
- public void expandMacro(String macro) {
- String member = prefix + macro;
- Class clasz = expander.getClass();
- try {
- expandMacro(macro, clasz.getMethod(member, NO_PARAMS));
- } catch (NoSuchMethodException exception) {
- error("macro '" + macro + "' is undefined");
- writer.print(lquote + macro + rquote);
- }
- }
-
- /** Expands the given macro by invoking the given method. */
- public void expandMacro(String macro, Method method) {
- try {
- method.invoke(expander, NO_ARGS);
- } catch (IllegalAccessException exception) {
- error("macro '" + macro + "' could not access method " + method);
- writer.print(lquote + macro + rquote);
- } catch (InvocationTargetException exception) {
- error("macro '" + macro + "' raised an exception");
- exception.getTargetException().printStackTrace();
- }
- }
-
- //########################################################################
- // Public Methods - Error messages
-
- /** Prints an error message. */
- public void error(String error) {
- String prefix = name != null ? name + ":" : "error:";
- if (line > 0) prefix = prefix + line + ":";
- System.err.println(prefix + " " + error);
- errors++;
- }
-
- /** Prints an error message. */
- public void error(String error, Throwable exception) {
- if (exception.getMessage() != null)
- error(exception.getMessage());
- else
- error(error + " (" + exception.getClass().getName() + ")");
- }
-
- //########################################################################
- // Public Methods - Getters
-
- /** Returns the output text writer. */
- public TextWriter getOutputWriter() {
- return writer;
- }
-
- /** Returns the macro expander. */
- public Object getMacroExpander() {
- return expander;
- }
-
- /** Returns the current macro name prefix. */
- public String getMacroPrefix() {
- return prefix;
- }
-
- /** Returns the current macro left quote. */
- public String getMacroLeftQuote() {
- return lquote;
- }
-
- /** Returns the current macro right quote. */
- public String getMacroRightQuote() {
- return lquote;
- }
-
- /** Returns the current input name. */
- public String getInputName() {
- return name;
- }
-
- /** Returns the current input line. */
- public int getInputLine() {
- return line;
- }
-
- /** Returns the current error count. */
- public int getErrorCount() {
- return errors;
- }
-
- //########################################################################
- // Public Methods - Setters
-
- /** Sets the current macro name prefix. */
- public void setMacroPrefix(String prefix) {
- this.prefix = prefix;
- }
-
- /** Sets the current macro quotes. */
- public void setMacroQuotes(String lquote, String rquote) {
- this.lquote = lquote;
- this.rquote = rquote;
- }
-
- /** Sets the current input name. */
- public void setInputName(String name) {
- this.name = name;
- }
-
- /** Sets the current input line. */
- public void setInputLine(int line) {
- this.line = line;
- }
-
- /** Sets the current error count. */
- public void setErrorCount(int errors) {
- this.errors = errors;
- }
-
- //########################################################################
-}
generated by cgit v1.2.3 (git 2.39.1) at 2024-09-18 09:41:23 +0000