From 2eae362fd3f50325067fa3d7e13db6882df80e76 Mon Sep 17 00:00:00 2001
From: Aleksey Veresov <aleksey@veresov.pro>
Date: Fri, 27 Sep 2019 18:09:07 +0300
Subject: Texo initial.

---
 src/plain.cpp | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 src/plain.cpp

(limited to 'src/plain.cpp')

diff --git a/src/plain.cpp b/src/plain.cpp
new file mode 100644
index 0000000..d8bc1b1
--- /dev/null
+++ b/src/plain.cpp
@@ -0,0 +1,55 @@
+#include "plain.hpp"
+
+
+TexoPlainProducer::TexoPlainProducer(TexoExporter &exporter):
+    TexoProducer(exporter)
+{}
+
+void TexoPlainProducer::Put(const Texo &piece)
+{
+    switch (piece.type) {
+    case Texo::character: exporter.Put(piece.c);
+    default:              break;
+    }
+}
+
+
+TexoPlainImporter::TexoPlainImporter(TexoProducer &producer):
+    TexoImporter(producer), first(true), space(0), newline(false)
+{}
+
+void TexoPlainImporter::Put(const char c)
+{
+    if (first) {
+        first = false;
+        producer.Put(Texo(Texo::paragraph_begin));
+    }
+    if (c == ' ') {
+        ++space;
+    } else if (c == '\n') {
+        if (newline) {
+            newline = false;
+            producer.Put(Texo(Texo::paragraph_end));
+            producer.Put(Texo(Texo::paragraph_begin));
+        } else {
+            newline = true;
+        }
+    } else if (!c) {
+        producer.Put(Texo(Texo::paragraph_end));
+    } else {
+        if (newline) {
+            newline = false;
+            if (space) {
+                space   = 0;
+                producer.Put(Texo(Texo::newline));
+            } else {
+                producer.Put(Texo(' '));
+            }
+        }
+        while (space) {
+            producer.Put(Texo(' '));
+            --space;
+        }
+        producer.Put(Texo(c));
+    }
+}
-- 
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