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POIs there a better implementation to extract a multiline text structure from one file based on the index from the other file?
 

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  1. POIs there a better implementation to extract a multiline text structure from one file based on the index from the other file?
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    <p>I have two files. One is a file of table creation strings dumped from database, the other is the name of tables, with a "prompt" as a prefix and a "..." as suffix. Just as below: file A (index):</p> <pre><code>prompt branch... prompt branch_param... prompt branch_pre_param... prompt business... prompt business_map... prompt business_type... </code></pre> <p>file B (dump):</p> <pre><code>CREATE TABLE "KS"."BRANCH" ("BRANCH_CODE" CHARACTER(3) NOT NULL DEFAULT '', "BRANCH_NAME" CHARACTER(40) NOT NULL DEFAULT '', "PARAM_LEVEL" INTEGER NOT NULL DEFAULT 0 ) DATA CAPTURE NONE IN "LONG_DATA_TBS"; CREATE TABLE "KS"."BRANCH2BANK" ("BRANCH_CODE" CHARACTER(3) NOT NULL DEFAULT '', "BANK_CODE" CHARACTER(6) NOT NULL DEFAULT '', "ACC_COMP_RESULT" CHARACTER(1) NOT NULL DEFAULT '' ) DATA CAPTURE NONE IN "SMALL_TBS"; CREATE TABLE "KS"."BRANCH2BOND" ("BRANCH_CODE" CHARACTER(3) NOT NULL DEFAULT '', "BOND_CODE" CHARACTER(8) NOT NULL DEFAULT '', "BOND_NAME" CHARACTER(20) NOT NULL DEFAULT '', "TOTAL_AMT" DECIMAL(19, 4) NOT NULL DEFAULT 0, "FINANCING_CUST_NO" CHARACTER(10) NOT NULL DEFAULT '', "SET_DATE" CHARACTER(8) NOT NULL DEFAULT '', "SET_TIME" CHARACTER(8) NOT NULL DEFAULT '', "SET_EMP" CHARACTER(6) NOT NULL DEFAULT '', "SPARE1" CHARACTER(20) NOT NULL DEFAULT '', "SPARE2" CHARACTER(20) NOT NULL DEFAULT '' ) DATA CAPTURE NONE IN "SMALL_TBS"; CREATE TABLE "KS"."BRANCH_PARAM" ("BRANCH_CODE" CHARACTER(3) NOT NULL DEFAULT '', "PARAM_CODE" CHARACTER(4) NOT NULL DEFAULT '', "SET_DATE" CHARACTER(8) NOT NULL DEFAULT '', "SET_TIME" CHARACTER(8) NOT NULL DEFAULT '' ) DATA CAPTURE NONE IN "SMALL_TBS"; CREATE TABLE "KS"."BRANCH_RESERVE_CREDIT_STOCK" ("BRANCH_CODE" CHARACTER(3) NOT NULL DEFAULT '', "SET_TIME" CHARACTER(8) NOT NULL DEFAULT '' ) DATA CAPTURE NONE IN "TX_DATA_TBS" INDEX IN "TX_INDEX_TBS"; </code></pre> <p>I have written a perl implementation, but I think it is much too ugly and inefficient. Is there a better way to improve this?</p> <p>my code: (rewritten with Richard and lilydjwg's advice) (last version)</p> <pre><code>#!/usr/bin/perl use 5.016; my (%hash,$cont); open IN,'&lt;',shift; while(&lt;IN&gt;){ chomp; $hash{$1}=1 if /prompt (\w+)\.\.\./; } close IN; open IN,'&lt;',shift; while(&lt;IN&gt;){ chomp; $cont = (defined $hash{lc $1}?say "prompt $1..." : 0) if /CREATE TABLE "KS"\."(\w+)"/; say if $cont == 1; } close IN; </code></pre>
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