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authorKaren Arutyunov <karen@codesynthesis.com>2020-11-19 23:33:05 +0300
committerKaren Arutyunov <karen@codesynthesis.com>2020-11-25 15:09:11 +0300
commite964348919b8d1334d655bd3f002c54a2bbdf879 (patch)
tree8d80b93d60833d3e490309d470b1632ef3121901
parent46875f55245e554fb6fe23317eb748719b9f546f (diff)
Allow multiple -e options for sed builtin
-rw-r--r--doc/testscript.cli16
1 files changed, 9 insertions, 7 deletions
diff --git a/doc/testscript.cli b/doc/testscript.cli
index b68844b..c295a31 100644
--- a/doc/testscript.cli
+++ b/doc/testscript.cli
@@ -2653,16 +2653,17 @@ working directory unless the \c{-f} option is specified.
\h#builtins-sed|\c{sed}|
\
-sed [-n] [-i] -e <script> [<file>]
+sed [-n] [-i] (-e <script>)... [<file>]
\
Read text from \i{file}, make editing changes according to \i{script}, and
-write the result to \c{stdout}. If \i{file} is not specified or is \c{-}, read
-from \c{stdin}. If both \i{file} and the \c{-i} option are specified then edit
-the \i{file} in place. Specifying \c{-i} when reading from \c{stdin} is
+write the result to \c{stdout}. If multiple \i{scripts} are present, then they
+are applied in the order specified. If \i{file} is not specified or is \c{-},
+read from \c{stdin}. If both \i{file} and the \c{-i} option are specified then
+edit the \i{file} in place. Specifying \c{-i} when reading from \c{stdin} is
illegal.
-Note that this builtin implementation deviates significantly from POSIX
+Note that this builtin implementation deviates substantially from POSIX
\c{sed} (as described next). Most significantly, the regular expression flavor
is ECMAScript (more specifically, ECMA-262-based C++11 regular expressions).
@@ -2679,7 +2680,7 @@ is ECMAScript (more specifically, ECMA-262-based C++11 regular expressions).
\li|\n\c{-e|--expression <script>}
- Editing commands to be executed (required).||
+ Editing commands to be executed. At least one script must be specified.||
To perform the transformation \c{sed} reads each line of input (without the
newline) into the pattern space. It then executes the script commands on the
@@ -2698,7 +2699,8 @@ are supported.
present in \i{flags} then continue substituting subsequent matches of
\i{regex} in the same pattern space. If the \c{p} flag is present in
\i{flags} and the replacement has been made, then write the pattern space to
- \c{stdout}. If both \c{g} and \c{p} were specified, then write the pattern
+ \c{stdout} and start the next cycle by proceeding to read the next line
+ of input. If both \c{g} and \c{p} were specified, then write the pattern
space out only after the last substitution.
Any character other than \c{\\} (backslash) or newline can be used instead