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authorChris Phillips <chrisp@hp.com>2014-08-21 20:18:47 +0000
committerjcarsey <jcarsey@6f19259b-4bc3-4df7-8a09-765794883524>2014-08-21 20:18:47 +0000
commitd41a79a0daaac52b3c555695d4dd3873d6f019c0 (patch)
tree1e1ecfd86d6897e739ff6e8f9440a775e2582cc8 /ShellPkg
parenta29117bf9e278763dfa6113492eb443be4ab67bc (diff)
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ShellPkg: Add support for UEFI Shell 2.1 spec command line comments
Example: Shell> echo "You are ^#1!" # Testing echo You are #1! Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Chris Phillips <chrisp@hp.com> Reviewed-by: Jaben Carsey <jaben.carsey@intel.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@15871 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ShellPkg')
-rw-r--r--ShellPkg/Application/Shell/Shell.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/ShellPkg/Application/Shell/Shell.c b/ShellPkg/Application/Shell/Shell.c
index 2f1e3eb65c..1d3064531d 100644
--- a/ShellPkg/Application/Shell/Shell.c
+++ b/ShellPkg/Application/Shell/Shell.c
@@ -2458,6 +2458,24 @@ RunCommand(
TrimSpaces(&CleanOriginal);
//
+ // NULL out comments (leveraged from RunScriptFileHandle() ).
+ // The # character on a line is used to denote that all characters on the same line
+ // and to the right of the # are to be ignored by the shell.
+ // Afterward, again remove spaces, in case any were between the last command-parameter and '#'.
+ //
+ for (TempWalker = CleanOriginal; TempWalker != NULL && *TempWalker != CHAR_NULL; TempWalker++) {
+ if (*TempWalker == L'^') {
+ if (*(TempWalker + 1) == L'#') {
+ CopyMem (TempWalker, TempWalker + 1, StrSize (TempWalker) - sizeof (TempWalker[0]));
+ }
+ } else if (*TempWalker == L'#') {
+ *TempWalker = CHAR_NULL;
+ }
+ }
+
+ TrimSpaces(&CleanOriginal);
+
+ //
// Handle case that passed in command line is just 1 or more " " characters.
//
if (StrLen (CleanOriginal) == 0) {