From 8be54b8fa7f24fe2886de95c4a2bd356dbae5aa9 Mon Sep 17 00:00:00 2001
From: flywind <43030857+xflywind@users.noreply.github.com>
Date: Tue, 30 Jun 2020 21:21:37 +0800
Subject: add debug fmt string like python's (#14808)

* add debug format string

* remove try except

* add changelog
---
 lib/pure/strformat.nim | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

(limited to 'lib')

diff --git a/lib/pure/strformat.nim b/lib/pure/strformat.nim
index 5f7ef380d..0ea784a43 100644
--- a/lib/pure/strformat.nim
+++ b/lib/pure/strformat.nim
@@ -552,8 +552,18 @@ proc strformatImpl(pattern: NimNode; openChar, closeChar: char): NimNode =
 
         var subexpr = ""
         while i < f.len and f[i] != closeChar and f[i] != ':':
-          subexpr.add f[i]
-          inc i
+          if f[i] == '=':
+            let start = i
+            inc i
+            i += f.skipWhitespace(i)
+            if f[i] == closeChar or f[i] == ':':
+              result.add newCall(bindSym"add", res, newLit(subexpr & f[start ..< i]))
+            else:
+              subexpr.add f[start ..< i]
+          else:
+            subexpr.add f[i]
+            inc i
+
         var x: NimNode
         try:
           x = parseExpr(subexpr)
-- 
cgit 1.4.1-2-gfad0