From 45c4fb1049d3f083e932875b1ecd7cb70eb3b507 Mon Sep 17 00:00:00 2001
From: Bruce Hill <bruce@bruce-hill.com>
Date: Mon, 14 Sep 2020 11:36:16 -0700
Subject: Tweaks and docs

---
 bpeg.1                 | 4 ++++
 grammars/builtins.bpeg | 4 ++--
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/bpeg.1 b/bpeg.1
index 4f2c18c..6088e44 100644
--- a/bpeg.1
+++ b/bpeg.1
@@ -145,6 +145,10 @@ be a string, and it may contain references to captured values: \fB@0\fR
 Will match only if \fI<pat1>\fR and \fI<pat2>\fR both match and have the exact
 same length. Pronounced \fI<pat1>\fB-assuming-it-equals-\fI<pat2>\fR
 
+.B |
+This pattern matches the indentation at the beginning of a line that has the
+same indentation as the line before (or zero indentation on the first line).
+
 .B (/)
 The empty string (a pattern that always matches).
 
diff --git a/grammars/builtins.bpeg b/grammars/builtins.bpeg
index df03104..b90ac12 100644
--- a/grammars/builtins.bpeg
+++ b/grammars/builtins.bpeg
@@ -8,8 +8,8 @@ only-matches = +{...@pattern=>'@1\n'};
 matching-line = +(..@pattern) ..$;
 
 # Helper definitions (commonly used)
-indent = \n |+(\t/' ');
-dedent = >(\n !|);
+indent = \n|+(\t/' ');
+dedent = $ !(\n|);
 indented-block = |` ..$ *(\n|..$);
 crlf = \r\n;
 cr = \r; r = \r;
-- 
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