Temporary replacement for removed crystal tool format --format json (#65)

Author: asterite

crystal_format.py

@@ -1,6 +1,7 @@
 import json
 import subprocess
 import sys
+import re
 
 import sublime_plugin
 import sublime
@@ -29,7 +30,8 @@ def run(self, edit):
     window = self.view.window()
 
     settings = sublime.load_settings('Crystal.sublime-settings')
-    command = [settings.get("crystal_cmd"), "tool", "format", "-", "--format", "json"]
+    #command = [settings.get("crystal_cmd"), "tool", "format", "-", "--format", "json"]
+    command = [settings.get("crystal_cmd"), "tool", "format", "-", "--no-color"]
 
     popen_args = dict(args=command, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
     # Prevent flashing terminal windows
@@ -59,13 +61,32 @@ def run(self, edit):
       window.run_command("hide_panel")
 
     else:
-      error = json.loads(stderr)
-      error_pos = self.view.text_point(error[0]["line"] - 1, error[0]["column"] - 1)
-      line_region = self.view.full_line(error_pos)
-      self.view.add_regions('crystal_errors', [line_region], 'comment', 'dot', sublime.HIDDEN)
+      error_pos = None
+      pattern = r"Error: Syntax error in .+?:(\d+): (.+)"
+      match = re.match(pattern, stderr)
+      if match:
+        error_pos = int(match.group(1))
+        error = match.group(2)
+      else:
+        error_pos = None
+        error = stderr
+      # error = json.loads(stderr)
+      # error_pos = self.view.text_point(error[0]["line"] - 1, error[0]["column"] - 1)
+
+      if error_pos:
+        line_region = self.view.full_line(error_pos)
+        self.view.add_regions('crystal_errors', [line_region], 'comment', 'dot', sublime.HIDDEN)
 
       error_panel = window.create_output_panel('crystal_errors')
-      error_panel.run_command("append", {"characters":
-        "Error at line %d, column %d: %s" % (error[0]["line"], error[0]["column"], error[0]['message'])
-      })
+      # error_panel.run_command("append", {"characters":
+      #   "Error at line %d, column %d: %s" % (error[0]["line"], error[0]["column"], error[0]['message'])
+      # })
+
+      if error_pos:
+        error_panel.run_command("append", {"characters":
+          "Error at line %d: %s" % (error_pos, error)
+        })
+      else:
+        error_panel.run_command("append", {"characters": error})
+
       window.run_command("show_panel", {"panel": "output.crystal_errors"})