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Contents
module FastHaml
class LineParser
attr_reader :lineno
def initialize(template_str)
@lines = template_str.each_line.map { |line| line.chomp.rstrip }
@lineno = 0
end
def next_line
line = move_next
if is_multiline?(line)
next_multiline(line)
else
line
end
end
def has_next?
@lineno < @lines.size
end
private
MULTILINE_SUFFIX = ' |'
# Regex to check for blocks with spaces around arguments. Not to be confused
# with multiline script.
# For example:
# foo.each do | bar |
# = bar
#
BLOCK_WITH_SPACES = /do\s*\|\s*[^\|]*\s+\|\z/o
def is_multiline?(line)
line = line.lstrip
line.end_with?(MULTILINE_SUFFIX) && line !~ BLOCK_WITH_SPACES
end
def move_next
@lines[@lineno].tap do
@lineno += 1
end
end
def move_back
@lineno -= 1
end
def next_multiline(line)
buf = [line[0, line.size-1]]
while @lineno < @lines.size
line = move_next
if is_multiline?(line)
line = line[0, line.size-1]
buf << line.lstrip
else
move_back
break
end
end
buf.join
end
end
end
Version data entries
11 entries across 11 versions & 1 rubygems