Changeset 994 for code/branches/core2/src/util/String.cc

Timestamp:

Apr 5, 2008, 5:54:24 PM (17 years ago)

Author:

landauf

Message:

• added some symbols to the CommandExecutor: a) expression | expression: the pipe leads the output from the right expression into the left one b) expression > file: writes the output of the expression into a file c) expression < file: reads a file and uses it's content as input for the expression

• added new console commands: a) echo text: returns the input b) read file: reads a file and returns the content c) write file text: writes text into a file d) append file text: appends text to a file

• added stripEnclosingQuotes function to String.h, that removes enclosing quotes (if there are some). whitespaces outside the quotes are stripped, whitespaces inside the quotes stay. removes the quotes only if there is nothing else than whitespaces outside of them. what it changes: "expression" → expression what it let unchanged:
  • ex"press"ion
  • a"expression"b
  • a"expression"
  • "expression"b
  • express"ion

• extended SubString: added some bools to determine the behaviour when dividing a string like the following up into pieces: mytext "this is a quoted area" blub (0, 1, 2)

this usually results in:
mytext / this is a quoted area / blub / 0, 1, 2

but now you can change it to:
mytext / "this is a quoted area" / blub / (0, 1, 2)

this is important if the string wents through several substring splitups and the quotes and brackets should stay.

File:

• code/branches/core2/src/util/String.cc (modified) (1 diff)

code/branches/core2/src/util/String.cc

@@ -52 +52 @@
     std::string output = std::string(str);
     strip(&output);
+    return output;
+}
+
+/**
+    @brief Removes enclosing quotes if available.
+    @brief str The string to strip
+*/
+void stripEnclosingQuotes(std::string* str)
+{
+    unsigned int start = std::string::npos;
+    unsigned int end = 0;
+
+    for (unsigned int pos = 0; (pos < (*str).size()) && (pos < std::string::npos); pos++)
+    {
+        if ((*str)[pos] == '"')
+        {
+            start = pos;
+            break;
+        }
+
+        if (((*str)[pos] != ' ') && ((*str)[pos] != '\t') && ((*str)[pos] != '\n'))
+            return;
+    }
+
+    for (unsigned int pos = (*str).size() - 1; pos < std::string::npos; pos--)
+    {
+        if ((*str)[pos] == '"')
+        {
+            end = pos;
+            break;
+        }
+
+        if (((*str)[pos] != ' ') && ((*str)[pos] != '\t') && ((*str)[pos] != '\n'))
+            return;
+    }
+
+    if ((start != std::string::npos) && (end != 0))
+        (*str) = (*str).substr(start + 1, end - start - 1);
+}
+
+/**
+    @brief Returns a copy of the string with removed enclosing quotes (if available).
+    @brief str The string to strip
+    @return The striped copy of the string
+*/
+std::string getStrippedEnclosingQuotes(const std::string& str)
+{
+    std::string output = std::string(str);
+    stripEnclosingQuotes(&output);
     return output;
 }