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Trilhando outros mundos... eita sofrimento bão   by Ruben Zevallos Jr.



Uma vez um amigo no estado de desespero, disse que iria abrir uma quitanda, para largar mão das coisas que parecem insolúveis da informática. São pequenos detalhes, que nada mais nada menos, são solúveis com a mudança do paradigma, mas quem quer mudar? Ninguém... Na época, disse para ele largar mão. Logo ele estaria colocando um computador para controlar o estoque, mas seria uma coisa simples, que logo cresceria até ter um verdadeiro CPD e a quitanda? Sei lá... mas o negócio seria logo de informática.

O antigo CSS (agora CSS1)
Eu sempre gostei muito do CSS, na realidade foi amor a primeira vista, apesar de todos dizerem que a MS - Microsoft não é aderente a padrões, o IE 3.0 - Internet Explorer 3.0 foi o primeiro a suportar o CSS e somente no NS 4 que o CSS foi implementado, ou seja, vieram outras pequenas versões, mas nada do CSS.

Gostei tanto do CSS, que fiz o meu site todo com ele, e algumas coisas, chegaram a ser referência tanto a respeito do ASP, como do CSS que eu usava em várias partes do site, que não era muito bonito, mas mostrava algumas potencialidades da tecnologia.

A MS, no meu ver, sempre procurou ser a favor dos desenvolvedores, não sei se isso é bom ou ruim, mas ela procura aceitar pequenas falhas do programador, bem como do desenhista de página... fazendo com o que o padrão, seja mais facilmente aceito e até implementado.

Me lembro dos tempos do Mosaic, que se alguma TAG HTML estivesse errada, a página não aparecia, mas logo com a entrada no NS - Netscape, essa facilidade foi resolvida, ou seja, apresentava com erro, mas apresentava.

Muitas pessoas, vêem a MS como vilã dos padrões, que dizem que ela não segue, mas a NS, foi sempre a mais radical de todas e sempre vangloriada neste aspecto, enquanto a MS propunha também novidades, mas uma legião de desenvovedores seguiam.

A conquista do mundo pelo IE
A MS em 1994, anunciou em um documento, informando seus planos para o futuro do sistema operacional, onde ela dizia que o usuário navegaria no servidor de rede ou em algum site na Internet, praticamente sem perceber. Foi uma visão muito avançada e muito antes do mercado dizer que a MS tinha perdido o mercado da Internet.

O lançamento do IE 1.0, foi o maior fiasco, ele foi baseado em um Browser comprado ou somente licenciado, mas foi ruim... o bom mesmo, foi com o IE 3, que realmente veio com diversas vantagens, quais foram o CSS e o ActiveX.

A Inclusão do IE no Windows 98, foi o que fez que hoje ele seja o mais usado atualmente... mas isso não quer dizer que é o melhor, apesar que o IE 6, teve muitas melhorias, mas a MS parou por ai e ainda anunciou que pararia de fazer melhorias.

Um novo erro de visão
A MS tem errado feio, na sua política de querer empurrar servidores... O Windows 2003 Web Edition, não instala o SQL Server 2000... só porque a MS assim determinou. O AD, precisa e é recomendado o uso de 1 servidor para o primário e outro para um backup. Fora os servidores para cada um dos serviços e você? Toma de pagar licenças de servidores... e como são caros...

Não sei se o problema também está no governo Americano, que proíbe a MS de vender mais barato e/ou abaixo de algum valor. De qualquer forma, governo ou a própria empresa, os usuários estão cada vez mais desejando e alguns até mudando definitivamente para ambientes livres.

Trilhando o mundo do CSS 2
O CSS 2, quando foi lançado, veio com muitas coisas legais, como o posicionamento absoluto, onde você poderia colocar qualquer objeto posicionado com base em algum referência, como das marges da janela do Browser... isso abriu um mundo de possibilidades para o design, que não mais precisaria ficar preso ao padrão de esquerda para direita, de cima para baixo, que é o definido pelo HTML e também pelas tabelas.

Tabelas... essas foram a tábua da salvação, para quem está usando o HTML desde a versão 1.0. Como eu sonhava em ter uma tabelinha ou outro meio, que não fosse o

 para colocar alguma coisa fora do padrão do fluxo, mas as tabelas também geraram problemas... Porque para renderizar as tabelas, o browser cria um mapa virtual e vai tomando a memória de uma forma louca... dependendo da página, você pode ter o seu browser com mais de 20 MB de memória em uso, fora as imagens e outros objetos. 

TableLess é a solução, mas ficar usando posicionamento absoluto é um grande problema, porque cada browser, e entenda, que estou dizendo TODOS, sem exceção, não tinham/seguiam um padrão de posicionamento... um pixel para o IE era diferente do Opera ou Netscape... com isso, o seu layout ficava horrível e/ou precisava ter uma versão para cada Browser, já as tabelas... elas eram mais fáceis de ajustar.

Hoje, todos os Browsers estão mais maduros, todos viram que essa onde de lançar padrões diferentes, estava somente prejudicando eles mesmos, o que favoreceu a disseminação do IE na Internet.

Decidi migrar todo o meu ambiente para o TableLess, isto é, o que não precisa de dados tabulares, como formulários, apresentações de conteúdo e assim por diante. Não é um trabalho fácil, porque a documentação do CSS 2 não é clara como eu gostaria, não existem exemplos avançados e quem sabe fazer a coisa, não diz como que, mas isso são coisas da Internet... quem não quer puxar a brasa para a sua sardinha?

Author Info:

Analista de Sistemas, especialista de projetos para Internet desde 1993, projetista e mantenedor de diversos sites no Brasil, como os sites da FAMEM e Porto do Itaqui.


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