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authorKaren Arutyunov <karen@codesynthesis.com>2022-09-20 23:00:27 +0300
committerKaren Arutyunov <karen@codesynthesis.com>2022-09-28 17:59:43 +0300
commit744e8215261fbf81b9348d115d4916a9c88b52cc (patch)
tree9b78941d4ea67fefdccca98215b1340dd2dd6c99 /libbuild2/script/script.cxx
parente59b4fc15eef3b3d0af5b81190b1e54f270ee2d2 (diff)
Add support for 'while' loop in script
Diffstat (limited to 'libbuild2/script/script.cxx')
-rw-r--r--libbuild2/script/script.cxx21
1 files changed, 12 insertions, 9 deletions
diff --git a/libbuild2/script/script.cxx b/libbuild2/script/script.cxx
index 9e6eeed..d4096cf 100644
--- a/libbuild2/script/script.cxx
+++ b/libbuild2/script/script.cxx
@@ -27,6 +27,7 @@ namespace build2
case line_type::cmd_elif: s = "'elif'"; break;
case line_type::cmd_elifn: s = "'elif!'"; break;
case line_type::cmd_else: s = "'else'"; break;
+ case line_type::cmd_while: s = "'while'"; break;
case line_type::cmd_end: s = "'end'"; break;
}
@@ -186,14 +187,14 @@ namespace build2
void
dump (ostream& os, const string& ind, const lines& ls)
{
- // Additionally indent the if-branch lines.
+ // Additionally indent the flow control construct block lines.
//
- string if_ind;
+ string fc_ind;
for (const line& l: ls)
{
- // Before printing indentation, decrease it if the else or end line is
- // reached.
+ // Before printing indentation, decrease it if the else, end, etc line
+ // is reached.
//
switch (l.type)
{
@@ -202,9 +203,9 @@ namespace build2
case line_type::cmd_else:
case line_type::cmd_end:
{
- size_t n (if_ind.size ());
+ size_t n (fc_ind.size ());
assert (n >= 2);
- if_ind.resize (n - 2);
+ fc_ind.resize (n - 2);
break;
}
default: break;
@@ -212,9 +213,10 @@ namespace build2
// Print indentations.
//
- os << ind << if_ind;
+ os << ind << fc_ind;
- // After printing indentation, increase it for if/else branch.
+ // After printing indentation, increase it for the flow control
+ // construct block lines.
//
switch (l.type)
{
@@ -222,7 +224,8 @@ namespace build2
case line_type::cmd_ifn:
case line_type::cmd_elif:
case line_type::cmd_elifn:
- case line_type::cmd_else: if_ind += " "; break;
+ case line_type::cmd_else:
+ case line_type::cmd_while: fc_ind += " "; break;
default: break;
}