October 2024
Intermediate to advanced
638 pages
15h 47m
Spanish
Content preview from Libro de cocina de Java, 4ª edición
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
Capítulo 4. Comparación de patrones con expresiones regulares
Este trabajo se ha traducido utilizando IA. Agradecemos tus opiniones y comentarios: translation-feedback@oreilly.com
4.0 Introducción
Supón que llevas unos años en Internet y has sido fiel a la hora de guardar toda tu correspondencia, por si tú (o tus abogados, o la fiscalía) necesitáis una copia. El resultado es que tienes una partición de disco de 5 GB dedicada al correo guardado. Supongamos además que recuerdas que en algún lugar de ahí hay un mensaje de correo electrónico de alguien llamada Angie o Anjie. ¿O era Angy? Pero no recuerdas cómo lo llamaste ni dónde lo guardaste. Obviamente, tienes que buscarlo.
Pero mientras algunos de vosotros vais e intentáis abrir los 15.000.000 de documentos en un procesador de textos, yo lo encontraré con un simple comando. Cualquier sistema que admita expresiones regulares me permite buscar el patrón de varias formas. La más sencilla de entender es
Angie|Anjie|Angy
que probablemente puedas adivinar significa simplemente buscar cualquiera de las variaciones. Una forma más concisa (más pensar, menos teclear) es:
An[^ dn]
La sintaxis se irá aclarando a medida que avancemos en este capítulo. Brevemente, la "A" y la "n" coinciden entre sí, encontrando de hecho palabras que empiecen por "An", mientras que el críptico [^ dn] requiere que la "An" vaya seguida de un carácter que no sea(^ significa no en este contexto) un espacio (para eliminar la palabra inglesa muy común "an" al principio ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.