Merge pull request #39 from teju85/window-support

Window support

README.org

@@ -1,8 +1,11 @@
 * teditor
 *teditor* is a terminal based editor, written from scratch in C++. More details
 about this editor can be found [[https://teju85.github.io/blog/tags.html#teditor][here]].
+* Supported OS's
+This has been only tested on cygwin till now. Should work for unix-based
+systems. If it doesn't build/work properly on them, fixes are most welcome.
 * Pre-reqs
-Very minimal set of pre-reqs are needed for this project!
+Very minimal set of pre-reqs are needed for this project.
 ** Compile time
 1. GNU-make (>= 4.2.1)
 2. G++ (>= 5.4.0)
@@ -21,13 +24,13 @@ $ ./bin/teditor
 #+END_SRC
 NOTE: If you have customized your minttyrc for the user configured colors,
 then your experience with the default colors may vary!!
-* Generating documentation
+* Developers
+** Generating documentation
 It is expected that one has installed doxygen for this purpose. Generated
 documentation can then be found inside the folder 'html'.
 #+BEGIN_SRC bash
 $ make doc
 #+END_SRC
-* Developers
 ** Unit testing
 Unit-tests are run via catch2.
 #+BEGIN_SRC bash

src/core/buffer.cpp

@@ -932,4 +932,54 @@ void Buffer::indent() {
   else removeRegion(start, end);
 }
 
+
+Buffers::~Buffers() {
+  for(int i=0;i<(int)size();++i) {
+    erase(i);
+    --i;
+  }
+  buffNames.clear();
+}
+
+void Buffers::clear() {
+  std::vector<Buffer*>::clear();
+  buffNames.clear();
+}
+
+Buffer* Buffers::push_back(const std::string& name) {
+  auto uname = uniquify(name);
+  auto* buf = new Buffer(uname);
+  push_back(buf);
+  return buf;
+}
+
+void Buffers::push_back(Buffer* buf) {
+  std::vector<Buffer*>::push_back(buf);
+  buffNames.insert(buf->bufferName());
+}
+
+void Buffers::erase(int idx) {
+  Buffer* buf = at(idx);
+  buffNames.erase(buf->bufferName());
+  delete buf;
+  std::vector<Buffer*>::erase(begin() + idx);
+}
+
+Strings Buffers::namesList() const {
+  Strings ret;
+  for(const auto* buff : *this) ret.push_back(buff->bufferName());
+  return ret;
+}
+
+std::string Buffers::uniquify(const std::string& name) const {
+  std::string out(name);
+  auto start = buffNames.begin(), end = buffNames.end();
+  int idx = 0;
+  while(std::find(start, end, out) != end) {
+    ++idx;
+    out = name + "_" + num2str(idx);
+  }
+  return out;
+}
+
 } // end namespace teditor

src/core/buffer.h

@@ -11,6 +11,7 @@
 #include "mode.h"
 #include "pos2d.h"
 #include <stack>
+#include <vector>
 
 
 namespace teditor {
@@ -195,8 +196,8 @@ class Buffer {
   Positions saveCursors() const { return copyCursors(locs); }
   /** restore the state of all cursors to the given one */
   void restoreCursors(const Positions& pos);
-  /** cursor at i'th index */
   const Pos2di& cursorAt(int i) const { return locs[i]; }
+  const Positions& cursors() const { return locs; }
   /** @} */
 
   /** length of a given line in this buffer */
@@ -217,6 +218,7 @@ class Buffer {
   bool isModified() const { return modified; }
   virtual int getMinStartLoc() const { return 0; }
   std::string dirModeGetFileAtLine(int line);
+  int start() const { return startLine; }
 
   /**
    * @defgroup RegionOps Operations with regions
@@ -234,6 +236,7 @@ class Buffer {
   void startRegion() { regions.enable(locs); }
   /** stop the currently active mark (or region) */
   void stopRegion() { regions.clear(); }
+  const Regions& getRegions() const { return regions; }
   /** @} */
 
   void reload();
@@ -386,4 +389,28 @@ class Buffer {
   friend class Editor;
 };
 
+
+/** a list of buffers */
+class Buffers : public std::vector<Buffer*> {
+public:
+  ~Buffers();
+
+  /** create a new buffer with a unique name and push it to the end */
+  Buffer* push_back(const std::string& name);
+
+  void clear();
+  void push_back(Buffer* buf);
+
+  /** list of buffer names, in the order they are found in this object */
+  Strings namesList() const;
+
+  /** erase buffer at the given index */
+  void erase(int idx);
+
+private:
+  std::set<std::string> buffNames;
+
+  std::string uniquify(const std::string& name) const;
+};
+
 }; // end namespace teditor