From 7c408c0f86c5d42230c0b27a50e892345fa32844 Mon Sep 17 00:00:00 2001
From: luxick <git@luxick.de>
Date: Sat, 15 Feb 2020 16:49:24 +0100
Subject: [PATCH] Link parser

---
 src/lamv.nim            | 31 ++++++++++++++++++++++++++-----
 tests/testDetection.nim | 17 +++++++++--------
 2 files changed, 35 insertions(+), 13 deletions(-)

diff --git a/src/lamv.nim b/src/lamv.nim
index f035a98..0d0e194 100644
--- a/src/lamv.nim
+++ b/src/lamv.nim
@@ -1,11 +1,22 @@
-import os
+import os, re
+
+type    
+  Link = object
+    ## Represents a link in a text file 
+    href: string  ## The link part that connects to another file
+    text: string  ## The text part of the link
+    file: string  ## The file, the link is found in
 
 const
   allowedExts = @[".org"]
+  orgRegex = r"\[\[(.+)\]\[(.+)\]\]"
 
-proc scanDir*(dir: string): seq[string] =
-  ## Walk the file system under the root dir and collect all files that could contain links
-  setCurrentDir(dir)
+proc newLink(href, text, file: string): Link = 
+  Link(href: href, text: text, file: file)
+
+proc scanDir*(): seq[string] =
+  ## Walk the file system under the root dir
+  ## and collect all files that could contain links
   var parts: tuple[dir, name, ext: string]
   for entry in walkDirRec(getCurrentDir(), relative = true):
     if fileExists(entry):
@@ -13,11 +24,21 @@ proc scanDir*(dir: string): seq[string] =
       if parts.ext in allowedExts:
         result.add(entry)
 
+proc parseLinks*(file: string): seq[Link] =
+  ## Parses the given text file and returns all links in the file
+  let f = open(file)
+  for line in f.lines:
+    let matches = line.findAll(re(orgRegex))
+    for match in matches:
+      echo "Link: ", match, " in file ", file
+      
+
 when isMainModule:
   let args = commandLineParams()
   var root = "./"
   if args.len == 1:
     root = args[0]
-  let files = scanDir(root)
+  setCurrentDir(root)
+  let files = scanDir()
   echo "Found these files:\n", files
 
diff --git a/tests/testDetection.nim b/tests/testDetection.nim
index a9bce04..de1009f 100644
--- a/tests/testDetection.nim
+++ b/tests/testDetection.nim
@@ -2,17 +2,18 @@ import unittest, os
 import lamv
 
 suite "Test the file detection":
-  setup:
-    const root = "./example"
-
-  test "Directory does not exist":
-    expect(OSError):
-      discard scanDir("./ThisDirDoesNotExist")
+  const root = "example"
+  setCurrentDir(root)
 
   test "Find org files":
-    let files = scanDir(root)
+    let files = scanDir()
     var parts: tuple[dir, name, ext: string]
     check files.len > 1
     for file in files:
       parts = splitFile(file)
-      check parts.ext == ".org"
\ No newline at end of file
+      check parts.ext == ".org"
+
+  test "Find links in file":
+    let files = scanDir()
+    for file in files:
+      discard file.parseLinks()
\ No newline at end of file