Function parse_string

numpy/distutils/conv_template.py:211–252

(astr, env, level, line)

replace_re = re.compile(r"@(\w+)@")
def parse_string(astr, env, level, line) :
    lineno = "#line %d\n" % line

    # local function for string replacement, uses env
    def replace(match):
        name = match.group(1)
        try :
            val = env[name]
        except KeyError:
            msg = 'line %d: no definition of key "%s"'%(line, name)
            raise ValueError(msg) from None
        return val

    code = [lineno]
    struct = parse_structure(astr, level)
    if struct :
        # recurse over inner loops
        oldend = 0
        newlevel = level + 1
        for sub in struct:
            pref = astr[oldend:sub[0]]
            head = astr[sub[0]:sub[1]]
            text = astr[sub[1]:sub[2]]
            oldend = sub[3]
            newline = line + sub[4]
            code.append(replace_re.sub(replace, pref))
            try :
                envlist = parse_loop_header(head)
            except ValueError as e:
                msg = "line %d: %s" % (newline, e)
                raise ValueError(msg)
            for newenv in envlist :
                newenv.update(env)
                newcode = parse_string(text, newenv, newlevel, newline)
                code.extend(newcode)
        suff = astr[oldend:]
        code.append(replace_re.sub(replace, suff))
    else :
        # replace keys
        code.append(replace_re.sub(replace, astr))
    code.append('\n')
    return ''.join(code)

def process_str(astr):
    code = [header]