| #!/usr/bin/env python3 |
| # takes a lef file and a y position => trims all RECT statements above the |
| # threshold |
| import re |
| import os |
| import sys |
| |
| ARGV = sys.argv |
| if len(ARGV) < 2: |
| print("Usage " + ARGV[0] + " threshold_y_pos") |
| sys.exit(-1) |
| MAX_Y = float(ARGV[1]) |
| LAYERS = ["li1", "met1", "met2", "met3", "met4", "met5"] |
| RECT_REGEX = r"^\s*RECT\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+(-?\d+\.?\d*)\s+;$" |
| |
| def rectify(llx, lly, urx, ury): |
| if lly > MAX_Y: |
| return (None, None, None, None) |
| ury = min(MAX_Y, ury) |
| return (llx, lly, urx, ury) |
| |
| layer = "" |
| for line in sys.stdin: |
| if line.isspace(): |
| continue |
| rect_match = re.search(RECT_REGEX, line) |
| if rect_match: |
| llx, lly, urx, ury = rect_match.group(1), rect_match.group(2), rect_match.group(3), rect_match.group(4) |
| llx, lly, urx, ury = rectify(float(llx), float(lly), float(urx), float(ury)) |
| if llx: |
| print(layer + line[:line.find('R')] + "RECT %f %f %f %f ;" % (llx, lly, urx, ury)) |
| if layer != "": # LAYER printed, clear it |
| layer = "" |
| else: |
| if line.find("LAYER") != -1: # print it only if there're RECTs |
| layer = line |
| else: |
| print(line, end='') |
